1127 lines
55 KiB
HTML
1127 lines
55 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="dc.language" scheme="rfc1766" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<meta name="dc.date" scheme="iso8601" content="2005-09-06" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1997, 2006" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow"/>
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="owner" content="RCHCLERK@us.ibm.com" />
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<title>E</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<a name="e"></a>
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<h2 id="e">E</h2>
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<p>Return to <a href="as4glos.htm#as4glos">Glossary</a>.</p>
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<dl>
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<dt id="x2026401" class="bold">
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<a name="x2026401"></a>EAB</dt>
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<dd>See <a href="rzaate.htm#x2026920">Enterprise
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Address Book</a>.</dd>
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<dt id="x2191934" class="bold">
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<a name="x2191934"></a>EAO exception</dt>
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<dd>See <a href="rzaate.htm#x2026485">effective address overflow exception</a>.</dd>
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<dt id="x2386506" class="bold">
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<a name="x2386506"></a>EBCDIC</dt>
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<dd>See <a href="rzaate.htm#x2009089">Extended Binary Coded Decimal Interchange Code</a>.</dd>
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<dt id="x2026405" class="bold">
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<a name="x2026405"></a>EBCDIC character</dt>
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<dd>Any one of the symbols
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included in the 8-bit EBCDIC set.</dd>
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<dt id="x2026410" class="bold">
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<a name="x2026410"></a>EBCDIC double-byte encoding scheme</dt>
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<dd>A structure that has separate, allocated coding space for control characters
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and graphic characters. Control characters do not have 16-bit codes in the
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EBCDIC structure definition. Graphic characters have a range from 4141 to
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FEFE. The space character is at 4040.</dd>
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<dt id="x2026415" class="bold">
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<a name="x2026415"></a>EBCDIC single-byte encoding scheme</dt>
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<dd>An 8-bit-per-byte structure. The EBCDIC single-byte structure has a valid
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code-point range for 00 to FF. Control characters have a range from 00 to
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3F. Graphic characters have a range from 41 to FE. The space character is
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40.</dd>
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<dt id="x2026420" class="bold">
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<a name="x2026420"></a>e-business</dt>
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<dd>The transaction of business
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over an electronic medium such as the Internet.</dd>
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<dt id="x2026425" class="bold">
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<a name="x2026425"></a>ECMA</dt>
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<dd>See <a href="rzaate.htm#x2054444">Ecma
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International</a>.</dd>
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<dt id="x2054444" class="bold">
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<a name="x2054444"></a>Ecma International (ECMA)</dt>
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<dd>An international
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association that is dedicated to the standardization of information and communication
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systems. The ECMA is based in Europe and was founded in 1961.</dd>
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<dt id="x2026430" class="bold">
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<a name="x2026430"></a>e-commerce</dt>
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<dd>The subset of e-business
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that involves the exchange of money for goods or services purchased over an
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electronic medium such as the Internet.</dd>
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<dt id="x2320222" class="bold">
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<a name="x2320222"></a>ECS</dt>
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<dd>See <a href="rzaate.htm#x2026618">electronic
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customer support</a>.</dd>
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<dt id="x2026435" class="bold">
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<a name="x2026435"></a>EDF</dt>
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<dd>See <a href="rzaate.htm#x2199430">execution
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diagnostic facility</a>.</dd>
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<dt id="x2026439" class="bold">
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<a name="x2026439"></a>edge device</dt>
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<dd>A functional unit such
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as a router or gateway that is deployed at the border of an administrative
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domain. An edge device controls traffic through one point only.</dd>
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<dt id="x2026444" class="bold">
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<a name="x2026444"></a>edit</dt>
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<dd>(1) To add, change, delete, rearrange,
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or modify the form or format of data.</dd>
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<dd>(2) To change a numeric field
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for output by suppressing zeros and inserting commas, periods, currency symbols,
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the sign status, or other constant information.</dd>
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<dt id="x2026455" class="bold">
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<a name="x2026455"></a>edit code</dt>
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<dd>A letter or number indicating
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that editing should be done according to a defined pattern before a field
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is displayed or printed. See also <a href="rzaate.htm#x2026480">edit word</a>.</dd>
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<dt id="x2026460" class="bold">
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<a name="x2026460"></a>edit description</dt>
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<dd>A description of
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a user-defined edit code. The system-recognized identifier is *EDTD.</dd>
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<dt id="x2026465" class="bold">
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<a name="x2026465"></a>editing character</dt>
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<dd>In COBOL, a single
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character or a fixed 2-character combination that punctuates output.</dd>
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<dt id="x2026470" class="bold">
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<a name="x2026470"></a>edit line</dt>
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<dd>In CoOperative Development
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Environment/400, a string of characters ended either by an end-of-line character
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sequence or by the end of the file.</dd>
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<dt id="x2026475" class="bold">
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<a name="x2026475"></a>editor program</dt>
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<dd>A computer program
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designed to perform such functions as rearrangement, modification, and deletion
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of data in accordance to prescribed rules (A).</dd>
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<dt id="x2026480" class="bold">
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<a name="x2026480"></a>edit word</dt>
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<dd>A user-defined word with
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a specific format that indicates how editing should be done. See also <a href="rzaate.htm#x2026455">edit code</a>.</dd>
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<dt id="x2026485" class="bold">
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<a name="x2026485"></a>effective address overflow exception (EAO exception)</dt>
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<dd>In Performance Tools, a condition in which the Licensed Internal
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Code must make address adjustments not made above the machine interface.</dd>
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<dt id="x2148401" class="bold">
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<a name="x2148401"></a>EIA</dt>
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<dd>See <a href="rzaate.htm#x2054117">Electronic
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Industries Association</a>.</dd>
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<dt id="x2026605" class="bold">
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<a name="x2026605"></a>EIA-232</dt>
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<dd>In data communications, a
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specification of the Electronic Industries Association (EIA) that defines
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the interface between data terminal equipment (DTE) and data circuit-terminating
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equipment (DCE) using serial binary data interchange.</dd>
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<dt id="x2026500" class="bold">
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<a name="x2026500"></a>EIA unit</dt>
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<dd>A unit of measure, established
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by the Electronic Industries Association, equal to 44.45 millimeters (1.75
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inches).</dd>
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<dt id="x2044048" class="bold">
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<a name="x2044048"></a>EIB</dt>
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<dd>See <a href="rzaate.htm#x2199420">EXEC
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interface block</a>.</dd>
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<dt id="x2026610" class="bold">
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<a name="x2026610"></a>EJB</dt>
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<dd>See <a href="rzaate.htm#x2026930">Enterprise JavaBeans™</a>.</dd>
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<dt id="x2082684" class="bold">
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<a name="x2082684"></a>electromagnetic compatibility (EMC)</dt>
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<dd>The design and test of products to meet legal and corporate specifications
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dealing with the emissions and susceptibility to frequencies in the radio
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spectrum. Electromagnetic compatibility is the ability of various electronic
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equipment to operate properly in the intended electromagnetic environment.</dd>
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<dt id="x2140931" class="bold">
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<a name="x2140931"></a>electromagnetic interference (EMI)</dt>
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<dd>Waves of electromagnetic radiation, including but not limited to radio frequencies,
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generated by the flow of electric current.</dd>
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<dt id="x2026618" class="bold">
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<a name="x2026618"></a>electronic customer support (ECS)</dt>
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<dd>A part of the operating system that allows a customer to access the question-and-answer
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(Q & A) function; problem analysis, reporting, and management; IBM® product information;
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and technical information exchange.</dd>
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<dt id="x2026623" class="bold">
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<a name="x2026623"></a>electronic document</dt>
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<dd>A document that
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is stored on the computer, instead of printed on paper.</dd>
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<dt id="x2054117" class="bold">
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<a name="x2054117"></a>Electronic Industries Association (EIA)</dt>
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<dd>An organization of electronics manufacturers that advances the technological
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growth of the industry, represents the views of its members, and develops
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industry standards.</dd>
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<dt id="x2026628" class="bold">
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<a name="x2026628"></a>electronic keystick</dt>
|
|
<dd>A device that
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|
slides into a slot on some iSeries™ system control panels. When the keystick
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|
is in place, it electronically unlocks functions at the key pad on the control
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panel. This allows a system operator to select an operating mode. When the
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keystick is removed, those functions are electronically locked, which prevents
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those without authority from placing the machine in some other mode.</dd>
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<dt id="x2026641" class="bold">
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|
<a name="x2026641"></a>electronic overlay</dt>
|
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<dd>An AFP™ resource object
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that is a collection of predefined data, such as lines, shading, text, boxes,
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or logos, that can be merged with variable data on a page while printing.</dd>
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|
<dt id="x2140952" class="bold">
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|
<a name="x2140952"></a>electrostatic discharge (ESD)</dt>
|
|
<dd>The
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flow of current that results when objects having a static charge come into
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close enough proximity to discharge.</dd>
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|
<dt id="x2026646" class="bold">
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|
<a name="x2026646"></a>element</dt>
|
|
<dd>(1) In AFP Utilities, the smallest unit that is used
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to design an AFP resource.</dd>
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|
<dd>(2) The smallest unit in a table, array, list,
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set, or other structure. For example, a value in a list of values; each data
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field in an array; each bar or space in a bar code.</dd>
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|
<dt id="x2026663" class="bold">
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|
<a name="x2026663"></a>elementary item</dt>
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|
<dd>In COBOL, a data
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item that cannot be further logically subdivided.</dd>
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|
<dt id="x2026668" class="bold">
|
|
<a name="x2026668"></a>element mark</dt>
|
|
<dd>In AFP Utilities, a
|
|
mark that is used to show the position of an element on a display; for example,
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'*B005' where B means bar code and 005 is the fifth element. See also <a href="rzaate.htm#x2026673">element name</a>.</dd>
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|
<dt id="x2026673" class="bold">
|
|
<a name="x2026673"></a>element name</dt>
|
|
<dd>In AFP Utilities, a
|
|
name that appears in the image area instead of an element mark. See also <a href="rzaate.htm#x2026668">element mark</a>.</dd>
|
|
<dt id="x2026678" class="bold">
|
|
<a name="x2026678"></a>ELLC</dt>
|
|
<dd>See <a href="rzaate.htm#x2026878">enhanced
|
|
logical link control</a>.</dd>
|
|
<dt id="x2026682" class="bold">
|
|
<a name="x2026682"></a>e-mail</dt>
|
|
<dd>Documents and messages that
|
|
are transmitted between users over a communication network.</dd>
|
|
<dt id="x2026691" class="bold">
|
|
<a name="x2026691"></a>embedded blank</dt>
|
|
<dd>A space between characters
|
|
within a unit of data.</dd>
|
|
<dt id="x2026696" class="bold">
|
|
<a name="x2026696"></a>embedded command</dt>
|
|
<dd>A command enclosed
|
|
as a value within another command.</dd>
|
|
<dt id="x2109201" class="bold">
|
|
<a name="x2109201"></a>embedded SQL</dt>
|
|
<dd>An SQL statement that
|
|
is coded within an application program.</dd>
|
|
<dt id="x2082719" class="bold">
|
|
<a name="x2082719"></a>EMC</dt>
|
|
<dd>See <a href="rzaate.htm#x2082684">electromagnetic
|
|
compatibility</a>.</dd>
|
|
<dt id="x2140933" class="bold">
|
|
<a name="x2140933"></a>EMI</dt>
|
|
<dd>See <a href="rzaate.htm#x2140931">electromagnetic
|
|
interference</a>.</dd>
|
|
<dt id="x2026704" class="bold">
|
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<a name="x2026704"></a>emitter</dt>
|
|
<dd>A program that takes the
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|
output from one system and converts the information into a different form.</dd>
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<dt id="x2026713" class="bold">
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|
<a name="x2026713"></a>emphasis</dt>
|
|
<dd>Highlighting, color change,
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or other visible indication of conditions relative to an object or choice
|
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that affects a user's ability to interact with that object or choice. Emphasis
|
|
can also give a user additional information about the state of a choice or
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an object.</dd>
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<dt id="x2026718" class="bold">
|
|
<a name="x2026718"></a>emulation</dt>
|
|
<dd>The use of software, hardware,
|
|
or both by one system to imitate another system. The imitating system accepts
|
|
the same data, runs the same programs, and achieves the same results as the
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imitated system.</dd>
|
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<dt id="x2026723" class="bold">
|
|
<a name="x2026723"></a>emulation program</dt>
|
|
<dd>A control program
|
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that permits functions written for one system or device to be run on another
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system or device.</dd>
|
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<dt id="x2026728" class="bold">
|
|
<a name="x2026728"></a>Encapsulated Security Payload (ESP)</dt>
|
|
<dd>In a virtual private network (VPN), a security protocol that provides data
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confidentiality and integrity.</dd>
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|
<dt id="x2026733" class="bold">
|
|
<a name="x2026733"></a>encapsulation</dt>
|
|
<dd>In object-oriented
|
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programming, the technique that is used to hide the inherent details of an
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object, function, or class from client programs. Client programs are only
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required to know the interface of a class (the signatures of the methods of
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the class and the names of the attributes of the class) to use the methods
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and attributes of the class.</dd>
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<dt id="x2026738" class="bold">
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<a name="x2026738"></a>encoded format</dt>
|
|
<dd>In query management,
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|
the format of the data in an externalized form file.</dd>
|
|
<dt id="x2026743" class="bold">
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|
<a name="x2026743"></a>encoded-vector index</dt>
|
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<dd>A DB2® UDB for iSeries index that is specialized for quick row selection in query processing.
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This type of index also provides accurate database statistics, which can improve
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the optimization of queries. See also <a href="rzaatr.htm#x2035729">radix-tree index</a>.</dd>
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<dt id="x2001733" class="bold">
|
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<a name="x2001733"></a>encoding scheme</dt>
|
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<dd>(1) The set of rules
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that specifies the values for control characters and graphic characters. Examples
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of encoding schemes include ASCII, ISO/IEC 10646, Unicode and IBM's EBCDIC.
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|
Encoding schemes are defined by standards organizations.</dd>
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<dd>(2) The
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underlying part of a code page that defines: a) the coding space (the number
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and allowable value of code points in a code page); b) the rules for sharing
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the coding space between control and graphic characters; and c) the rules
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related to the specific options permitted in that scheme, such as the number
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|
of bits in a byte, single-byte, or double-byte.</dd>
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<dt id="x2054203" class="bold">
|
|
<a name="x2054203"></a>ENCP</dt>
|
|
<dd>See <a href="rzaate.htm#x2079210">end-node
|
|
control point</a>.</dd>
|
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<dt id="x2026757" class="bold">
|
|
<a name="x2026757"></a>encrypt</dt>
|
|
<dd>In Cryptographic Support,
|
|
to systematically scramble information so that it cannot be read without knowing
|
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the coding key. See also <a href="rzaatd.htm#x2019886">decrypt</a>.</dd>
|
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<dt id="x2026762" class="bold">
|
|
<a name="x2026762"></a>encryption</dt>
|
|
<dd>In computer security,
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|
the process of transforming data into an unintelligible form in such a way
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|
that the original data either cannot be obtained or can be obtained only by
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using a decryption process.</dd>
|
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<dt id="x2026767" class="bold">
|
|
<a name="x2026767"></a>encryption algorithm</dt>
|
|
<dd>An algorithm
|
|
that scrambles the data so that it becomes unreadable to someone who intercepts
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it.</dd>
|
|
<dt id="x2026782" class="bold">
|
|
<a name="x2026782"></a>ending attribute character</dt>
|
|
<dd>For a
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display file, the character following the last position in a field.</dd>
|
|
<dt id="x2001738" class="bold">
|
|
<a name="x2001738"></a>end node</dt>
|
|
<dd>In SNA, a node in an APPN
|
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network that can be a source or target node, but does not provide any routing
|
|
or session services to any other node.</dd>
|
|
<dt id="x2079210" class="bold">
|
|
<a name="x2079210"></a>end-node control point (ENCP)</dt>
|
|
<dd>A control
|
|
point that provides its own configuration, session, and management services
|
|
with assistance from the control point in its serving network node. An ENCP
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|
is capable of engaging in CP-CP sessions with other nodes.</dd>
|
|
<dt id="x2026790" class="bold">
|
|
<a name="x2026790"></a>end-of-file delay</dt>
|
|
<dd>An interval during
|
|
which the system holds a file open after the normal end of the file is reached
|
|
until one or more records are updated or added to the end of the file. The
|
|
length of the interval can be specified on the EOFDLY parameter.</dd>
|
|
<dt id="x2026795" class="bold">
|
|
<a name="x2026795"></a>End of Procedure Division</dt>
|
|
<dd>In COBOL,
|
|
the physical position of a COBOL source program after which no further procedures
|
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appear.</dd>
|
|
<dt id="x2026800" class="bold">
|
|
<a name="x2026800"></a>end-of-tape marker (EOT marker)</dt>
|
|
<dd>A reflective material placed on a magnetic tape to indicate the end of the
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recording area.</dd>
|
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<dt id="x2026805" class="bold">
|
|
<a name="x2026805"></a>end-of-text character (ETX character)</dt>
|
|
<dd>The BSC transmission control character used to end a logical set of
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records that began with the start-of-text character. See also <a href="rzaate.htm#x2026810">end-of-transmission-block character</a>.</dd>
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<dt id="x2026810" class="bold">
|
|
<a name="x2026810"></a>end-of-transmission-block character (ETB character)</dt>
|
|
<dd>The BSC transmission control character used to end a block of
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records. See also <a href="rzaate.htm#x2026805">end-of-text character</a>.</dd>
|
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<dt id="x2026815" class="bold">
|
|
<a name="x2026815"></a>end-of-transmission character (EOT character)</dt>
|
|
<dd>A transmission control character used to indicate the conclusion
|
|
of a transmission that may have included one or more texts and any associated
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message headings.</dd>
|
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<dt id="x2026820" class="bold">
|
|
<a name="x2026820"></a>endpoint</dt>
|
|
<dd>(1) A host or gateway that comprises
|
|
part of a virtual private network (VPN) connection. A VPN includes two endpoints
|
|
and a security policy.</dd>
|
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<dd>(2) The system that is the origin or destination
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|
of a session.</dd>
|
|
<dt id="x2026836" class="bold">
|
|
<a name="x2026836"></a>endpoint system</dt>
|
|
<dd>Any system that is
|
|
running i5/OS™ and is connected to the central system. An endpoint system is defined
|
|
from the central system for the purpose of performing iSeries Navigator
|
|
functions.</dd>
|
|
<dt id="x2026846" class="bold">
|
|
<a name="x2026846"></a>end program header</dt>
|
|
<dd>In COBOL, a combination
|
|
of words, followed by a separator period, that indicates the end of a COBOL
|
|
source program. The end program header is: END PROGRAM program-name.</dd>
|
|
<dt id="x2026851" class="bold">
|
|
<a name="x2026851"></a>end system</dt>
|
|
<dd>(1) The last system in a chain
|
|
of systems that are linked by any combination of TELNET and pass-through requests.</dd>
|
|
<dd>(2) See <a href="rzaatd.htm#x2020233">destination node</a>.</dd>
|
|
<dt id="x2026859" class="bold">
|
|
<a name="x2026859"></a>end-to-end connection type</dt>
|
|
<dd>In OSI,
|
|
the type of network service connection used between the local and destination
|
|
node, that is connection mode, connectionless mode, or both.</dd>
|
|
<dt id="x2026869" class="bold">
|
|
<a name="x2026869"></a>eNetwork</dt>
|
|
<dd>See <a href="rzaati.htm#x2024753">IBM eNetwork
|
|
Software</a>.</dd>
|
|
<dt id="x2026873" class="bold">
|
|
<a name="x2026873"></a>enforced subset match conversion/substitution</dt>
|
|
<dd>A conversion where the characters that exist in both the source
|
|
coded character set identifier (CCSID) and the target CCSID have their integrity
|
|
maintained. Characters that are not included in the target CCSID are presented
|
|
to the user as substitution characters. This substitution is permanent. Any
|
|
loss of character integrity is permanent. An EBCDIC-encoded character that
|
|
is in the source CCSID but not in the target CCSID is replaced with 3F.</dd>
|
|
<dt id="x2026888" class="bold">
|
|
<a name="x2026888"></a>Enhanced 5250 Emulation</dt>
|
|
<dd>A program
|
|
that allows a personal computer and a printer to be attached to an iSeries server and
|
|
perform the functions of one or two 5250 workstations on one twinaxial cable.
|
|
The workstations can be one display station, two display stations, or one
|
|
display station and one printer.</dd>
|
|
<dt id="x2026878" class="bold">
|
|
<a name="x2026878"></a>enhanced logical link control (ELLC)</dt>
|
|
<dd>An X.25 protocol that allows the transfer of data link control information
|
|
between two adjoining SNA nodes that are connected through an X.25 packet-switching
|
|
data network. ELLC enhances error detection and recovery. See also <a href="rzaatp.htm#x2033705">physical services header</a>, <a href="rzaatq.htm#x2035555">qualified logical link
|
|
control</a>.</dd>
|
|
<dt id="x2026883" class="bold">
|
|
<a name="x2026883"></a>enhanced NWS</dt>
|
|
<dd>A character-based 5250
|
|
workstation with an enhanced character set that allows the presentation of
|
|
characters that look like graphical symbols.</dd>
|
|
<dt id="x2191942" class="bold">
|
|
<a name="x2191942"></a>ENQ character</dt>
|
|
<dd>See <a href="rzaate.htm#x2026905">enquiry character</a>.</dd>
|
|
<dt id="x2026897" class="bold">
|
|
<a name="x2026897"></a>enqueue</dt>
|
|
<dd>To place items in a queue.
|
|
See also <a href="rzaatd.htm#x2020132">dequeue</a>.</dd>
|
|
<dt id="x2026905" class="bold">
|
|
<a name="x2026905"></a>enquiry character (ENQ character)</dt>
|
|
<dd>The BSC transmission control character usually used to request a response
|
|
from the remote system or device.</dd>
|
|
<dt id="x2026910" class="bold">
|
|
<a name="x2026910"></a>enroll</dt>
|
|
<dd>In Backup Recovery and Media
|
|
Services, to identify media to Backup Recovery and Media Services. Media initialized
|
|
in Backup Recovery and Media Services does not need to be enrolled.</dd>
|
|
<dt id="x2026915" class="bold">
|
|
<a name="x2026915"></a>enterprise</dt>
|
|
<dd>The entire business organization
|
|
under discussion. An enterprise may consist of one or more establishments,
|
|
divisions, plants, warehouses, and so on that require an information system.</dd>
|
|
<dt id="x2026920" class="bold">
|
|
<a name="x2026920"></a>Enterprise Address Book (EAB)</dt>
|
|
<dd>A collection
|
|
of information about people, departments, and locations in an enterprise.
|
|
Information about people may include telephone numbers, mailing addresses,
|
|
and the department in which a person works. Department information may include
|
|
the department name, the manager, and the department name the department reports
|
|
to. Location information may contain a mailing address. On the iSeries server, the
|
|
EAB is the system distribution directory.</dd>
|
|
<dt id="x2026925" class="bold">
|
|
<a name="x2026925"></a>enterprise information system</dt>
|
|
<dd>In
|
|
System Manager, all the resources that the applications manage and the functions
|
|
for managing them.</dd>
|
|
<dt id="x2026930" class="bold">
|
|
<a name="x2026930"></a>Enterprise JavaBeans (EJB)</dt>
|
|
<dd>A component
|
|
architecture defined by Sun Microsystems for the development and deployment
|
|
of object-oriented, distributed, enterprise-level applications.</dd>
|
|
<dt id="x2026945" class="bold">
|
|
<a name="x2026945"></a>entity</dt>
|
|
<dd>In OSI, the representation
|
|
of a layer on a given open system.</dd>
|
|
<dt id="x2026961" class="bold">
|
|
<a name="x2026961"></a>entropy</dt>
|
|
<dd>The minimum number of bits
|
|
needed to represent the information that is contained in a message.</dd>
|
|
<dt id="x2026966" class="bold">
|
|
<a name="x2026966"></a>entry</dt>
|
|
<dd>In COBOL, any descriptive set
|
|
of consecutive clauses stopped by a separator period and written in the Identification
|
|
Division, Environment Division, or Data Division of a COBOL program.</dd>
|
|
<dt id="x2026974" class="bold">
|
|
<a name="x2026974"></a>entry field</dt>
|
|
<dd>An area on a display
|
|
where a user can enter information, unless the field is read-only. The boundaries
|
|
of an entry field are usually indicated.</dd>
|
|
<dt id="x2026979" class="bold">
|
|
<a name="x2026979"></a>entry format</dt>
|
|
<dd>The description of a
|
|
personal directory entry. Each personal directory entry has an identical structure.
|
|
The entry structure determines the type and size of each field in a personal
|
|
directory entry.</dd>
|
|
<dt id="x2026984" class="bold">
|
|
<a name="x2026984"></a>entry point (EP)</dt>
|
|
<dd>The address or label
|
|
of the first instruction processed or entered in a program, routine, or subroutine.
|
|
A program, routine, or subroutine can have a number of different entry points,
|
|
each corresponding to a different function or purpose.</dd>
|
|
<dt id="x2026994" class="bold">
|
|
<a name="x2026994"></a>enumeration data type</dt>
|
|
<dd>In the Fortran,
|
|
C, and C++ language, a data type that represents a set of values that a user
|
|
defines.</dd>
|
|
<dt id="x2026999" class="bold">
|
|
<a name="x2026999"></a>envelope</dt>
|
|
<dd>A string of data representing
|
|
information about a message aside from the attachments and its recipients.</dd>
|
|
<dt id="x2027007" class="bold">
|
|
<a name="x2027007"></a>envelope type</dt>
|
|
<dd>A value used to define
|
|
the format and contents of an envelope, so that the programs that work with
|
|
specific types of envelopes are supported. The envelope types supported on
|
|
a system are defined when the mail server framework is configured. The value
|
|
associated with an envelope type must be a unique type value.</dd>
|
|
<dt id="x2027012" class="bold">
|
|
<a name="x2027012"></a>environment clause</dt>
|
|
<dd>In COBOL, a clause
|
|
that appears as part of an Environment Division entry.</dd>
|
|
<dt id="x2027017" class="bold">
|
|
<a name="x2027017"></a>Environment Division</dt>
|
|
<dd>One of the four
|
|
main parts of a COBOL program. The Environment Division describes the computers
|
|
on which the source program is compiled and those on which the object program
|
|
is run; it also provides a connection between the logical concept of files
|
|
and their records, and the physical characteristics of the devices on which
|
|
files are stored.</dd>
|
|
<dt id="x2027022" class="bold">
|
|
<a name="x2027022"></a>environment variable</dt>
|
|
<dd>A variable that
|
|
specifies the operating environment for a process. For example, environment
|
|
variables can describe the home directory, the command search path, the terminal
|
|
in use, and the current time zone.</dd>
|
|
<dt id="x2187605" class="bold">
|
|
<a name="x2187605"></a>EOT character</dt>
|
|
<dd>See <a href="rzaate.htm#x2026815">end-of-transmission character</a>.</dd>
|
|
<dt id="x2191936" class="bold">
|
|
<a name="x2191936"></a>EOT marker</dt>
|
|
<dd>See <a href="rzaate.htm#x2026800">end-of-tape marker</a>.</dd>
|
|
<dt id="x2027033" class="bold">
|
|
<a name="x2027033"></a>EP</dt>
|
|
<dd>(1) See <a href="rzaate.htm#x2027061">Error
|
|
Protocol</a>.</dd>
|
|
<dd>(2) See <a href="rzaate.htm#x2026984">entry point</a>.</dd>
|
|
<dt id="x2027051" class="bold">
|
|
<a name="x2027051"></a>equate name</dt>
|
|
<dd>In Interactive Source
|
|
Debugger, a shorter name assigned to a command that is used often. The equate
|
|
name, when called, performs the same function as the command.</dd>
|
|
<dt id="x2054349" class="bold">
|
|
<a name="x2054349"></a>ER</dt>
|
|
<dd>See <a href="rzaate.htm#x2027181">exception
|
|
response</a>.</dd>
|
|
<dt id="x2027056" class="bold">
|
|
<a name="x2027056"></a>error log</dt>
|
|
<dd>A record of machine checks,
|
|
device errors, and media statistics.</dd>
|
|
<dt id="x2027061" class="bold">
|
|
<a name="x2027061"></a>Error Protocol (EP)</dt>
|
|
<dd>A protocol that
|
|
provides a means for an Internetwork Packet Exchange (IPX) system to report
|
|
that is has detected an error, and as a result of that error, the IPX system
|
|
has discarded an IPX packet.</dd>
|
|
<dt id="x2001773" class="bold">
|
|
<a name="x2001773"></a>escape character</dt>
|
|
<dd>The symbol that
|
|
is used to enclose an SQL delimited identifier. The escape character is the
|
|
double quotation mark, except in COBOL applications, where the user assigns
|
|
the symbol, which is either a double quotation mark or an apostrophe.</dd>
|
|
<dt id="x2027071" class="bold">
|
|
<a name="x2027071"></a>escape message</dt>
|
|
<dd>A message that reports
|
|
a condition that caused the program to end before the requested function was
|
|
complete.</dd>
|
|
<dt id="x2027076" class="bold">
|
|
<a name="x2027076"></a>escape sequence</dt>
|
|
<dd>A string of bit combinations
|
|
that is used to escape from normal data, such as text code points, into control
|
|
information.</dd>
|
|
<dt id="x2205585" class="bold">
|
|
<a name="x2205585"></a>ESD</dt>
|
|
<dd>See <a href="rzaate.htm#x2140952">electrostatic
|
|
discharge</a>.</dd>
|
|
<dt id="x2044005" class="bold">
|
|
<a name="x2044005"></a>ESP</dt>
|
|
<dd>See <a href="rzaate.htm#x2026728">Encapsulated
|
|
Security Payload</a>.</dd>
|
|
<dt id="x2119558" class="bold">
|
|
<a name="x2119558"></a>ESS</dt>
|
|
<dd>See <a href="rzaati.htm#x2243801">IBM TotalStorage® Enterprise Storage Server®</a>.</dd>
|
|
<dt id="x2191940" class="bold">
|
|
<a name="x2191940"></a>ETB character</dt>
|
|
<dd>See <a href="rzaate.htm#x2026810">end-of-transmission-block character</a>.</dd>
|
|
<dt id="x2027085" class="bold">
|
|
<a name="x2027085"></a>Ethernet</dt>
|
|
<dd>A packet-based networking
|
|
technology for local area networks (LANs) that allows multiple access and
|
|
handles contention by using Carrier Sense Multiple Access with Collision Detection
|
|
(CSMA/CD) as the access method. Ethernet is standardized in the IEEE 802.3
|
|
specification.</dd>
|
|
<dt id="x2191938" class="bold">
|
|
<a name="x2191938"></a>ETX character</dt>
|
|
<dd>See <a href="rzaate.htm#x2026805">end-of-text character</a>.</dd>
|
|
<dt id="x2009117" class="bold">
|
|
<a name="x2009117"></a>EUC</dt>
|
|
<dd>See <a href="rzaate.htm#x2027474">extended UNIX® coded character set</a>.</dd>
|
|
<dt id="x2027094" class="bold">
|
|
<a name="x2027094"></a>even positive acknowledgment (ACK0)</dt>
|
|
<dd>In BSC, the even-numbered, positive acknowledgment character, which indicates
|
|
that text was received without transmission errors.</dd>
|
|
<dt id="x2027098" class="bold">
|
|
<a name="x2027098"></a>event</dt>
|
|
<dd>(1) An occurrence of significance
|
|
to a task or system, such as the completion or failure of an operation.</dd>
|
|
<dd>(2) A representation of a change that occurs to a part. The change enables
|
|
other interested parts to receive notification when something about the part
|
|
changes. For example, a push button generates an event by signalling that
|
|
it has been clicked, which may cause another part to display a window.</dd>
|
|
<dd>(3) In OSI, the occurrence of a well-defined situation. Events may be planned
|
|
(for example, transactions), or they may be spontaneous or unplanned (for
|
|
example, faults). An agent reports events to its managers.</dd>
|
|
<dt id="x2027109" class="bold">
|
|
<a name="x2027109"></a>event action list</dt>
|
|
<dd>In VisualAge® RPG, a
|
|
list of controls that indicates the action subroutine to be called by the
|
|
event of each control.</dd>
|
|
<dt id="x2027114" class="bold">
|
|
<a name="x2027114"></a>event filter</dt>
|
|
<dd>In OSI, a method for
|
|
excluding certain types of events so that they are not reported.</dd>
|
|
<dt id="x2027119" class="bold">
|
|
<a name="x2027119"></a>event log</dt>
|
|
<dd>A log that contains information
|
|
about events for a particular system or group, for a particular metric, or
|
|
for all the events that are associated with a specific monitor.</dd>
|
|
<dt id="x2027124" class="bold">
|
|
<a name="x2027124"></a>event report</dt>
|
|
<dd>In OSI, the unsolicited
|
|
notification of a significant occurrence by an agent to a manager .</dd>
|
|
<dt id="x2027129" class="bold">
|
|
<a name="x2027129"></a>events file</dt>
|
|
<dd>In CoOperative Development
|
|
Environment/400, a machine-readable file, created by a compiler or when the
|
|
Verify program choice is selected, that contains information about locations
|
|
of errors in a source file.</dd>
|
|
<dt id="x2027134" class="bold">
|
|
<a name="x2027134"></a>EX</dt>
|
|
<dd>See <a href="rzaate.htm#x2027181">exception
|
|
response</a>.</dd>
|
|
<dt id="x2027138" class="bold">
|
|
<a name="x2027138"></a>exact end position</dt>
|
|
<dd>In RPG, an entry
|
|
on the output specifications that indicates where the end position of a field
|
|
or constant is to be placed in the output record. See also <a href="rzaatr.htm#x2036443">relative end position</a>.</dd>
|
|
<dt id="x2027143" class="bold">
|
|
<a name="x2027143"></a>exact-name format</dt>
|
|
<dd>In AFP support, a print
|
|
descriptor naming convention that uses system-specific (actual) group names
|
|
instead of group alias names.</dd>
|
|
<dt id="x2027148" class="bold">
|
|
<a name="x2027148"></a>EXCEPT group name</dt>
|
|
<dd>In RPG, a name
|
|
used in the place of indicators to identify a record or group of records written
|
|
at exception output time.</dd>
|
|
<dt id="x2027153" class="bold">
|
|
<a name="x2027153"></a>exception</dt>
|
|
<dd>(1) In programming languages,
|
|
an abnormal situation that may arise during execution, that may cause a deviation
|
|
from the normal execution sequence, and for which facilities exist in a programming
|
|
language to define, raise, recognize, ignore, and handle it; for example,
|
|
(ON-) condition in PL/I, exception in Ada. (I) See also <a href="rzaats.htm#x2038843">signal</a>.</dd>
|
|
<dd>(2) In VisualAge RPG, an event or situation that
|
|
prevents, or could prevent, an action requested by a user from being completed
|
|
in a manner that the user would expect. Exceptions occur when a product is
|
|
unable to interpret a user's input.</dd>
|
|
<dt id="x2027161" class="bold">
|
|
<a name="x2027161"></a>exceptional wait</dt>
|
|
<dd>In Performance Tools,
|
|
that portion of internal response time that cannot be attributed to the use
|
|
of the processor and disk. An exceptional wait is caused by contention for
|
|
internal resources of the system, for example, waiting for a lock on a database
|
|
record.</dd>
|
|
<dt id="x2027166" class="bold">
|
|
<a name="x2027166"></a>exception/error handling</dt>
|
|
<dd>In RPG,
|
|
user-written code that handles program or file exceptions/errors. If the program
|
|
or file exceptions/errors are not controlled by the user, the RPG default
|
|
error handler receives control.</dd>
|
|
<dt id="x2027171" class="bold">
|
|
<a name="x2027171"></a>exception handler</dt>
|
|
<dd>A set of routines
|
|
that responds to an abnormal condition. An exception handler is able to interrupt
|
|
and to resume the normal running of processes in order to deal with an exception.</dd>
|
|
<dt id="x2027176" class="bold">
|
|
<a name="x2027176"></a>exception request (EXR)</dt>
|
|
<dd>In SNA, a
|
|
request that replaces another request in which an error was detected. Note:
|
|
The exception request contains a 4-byte sense field that identifies the error
|
|
in the original request and, except if there were some path errors, is sent
|
|
to the destination of the original request; if possible, the sense data is
|
|
returned in a negative response to the sender of the original request.</dd>
|
|
<dt id="x2027181" class="bold">
|
|
<a name="x2027181"></a>exception response (EX, ER)</dt>
|
|
<dd>In SNA,
|
|
a value in the form-of-response-requested field of the request header that
|
|
directs the receiver of the request to return a response only if the request
|
|
is unacceptable as received or if the request cannot be processed; that is,
|
|
only a negative response can be returned. See also <a href="rzaatd.htm#x2020048">definite response</a>, <a href="rzaatn.htm#x2061619">no response</a>.</dd>
|
|
<dt id="x2199390" class="bold">
|
|
<a name="x2199390"></a>exchange log name</dt>
|
|
<dd>A process used
|
|
when sessions are first established to determine which log is being used by
|
|
the remote system.</dd>
|
|
<dt id="x2027191" class="bold">
|
|
<a name="x2027191"></a>exchange media</dt>
|
|
<dd>The diskette or the
|
|
tape that the user uses when exchanging data with other systems.</dd>
|
|
<dt id="x2027196" class="bold">
|
|
<a name="x2027196"></a>exchange station ID (XID)</dt>
|
|
<dd>In communications,
|
|
a data link command or response for recognizing the primary station and a
|
|
secondary station.</dd>
|
|
<dt id="x2027201" class="bold">
|
|
<a name="x2027201"></a>exclude authority</dt>
|
|
<dd>An object authority
|
|
that prevents the user from using the object or its contents. See also <a href="rzaata.htm#x2013520">all authority</a>.</dd>
|
|
<dt id="x2027206" class="bold">
|
|
<a name="x2027206"></a>exclusive allow-read lock state</dt>
|
|
<dd>The lock on an object that allows only one job to use the object, but allows
|
|
other jobs to read the object. The predefined value for this lock state is
|
|
*EXCLRD.</dd>
|
|
<dt id="x2001803" class="bold">
|
|
<a name="x2001803"></a>exclusive lock</dt>
|
|
<dd>A lock that prevents
|
|
concurrently executing application processes from accessing database data.
|
|
See also <a href="rzaatg.htm#x2002174">gross lock</a>, <a href="rzaats.htm#x2004579">shared
|
|
lock</a>.</dd>
|
|
<dt id="x2027214" class="bold">
|
|
<a name="x2027214"></a>exclusive lock state</dt>
|
|
<dd>The lock on
|
|
an object that allows only one job to use the object; no other job can use
|
|
the object. The predefined value for this lock state is *EXCL.</dd>
|
|
<dt id="x2027219" class="bold">
|
|
<a name="x2027219"></a>exclusive-OR</dt>
|
|
<dd>A logic operator having
|
|
the property that if P is a binary digit and Q is a binary digit and either
|
|
P or Q is 1, but not both, then P exclusive-OR Q is 1.</dd>
|
|
<dt id="x2199420" class="bold">
|
|
<a name="x2199420"></a>EXEC interface block (EIB)</dt>
|
|
<dd>A control
|
|
block associated with each task in a CICS® command-level environment. The EIB contains
|
|
information that is useful during the execution of an application program
|
|
(such as the transaction identifiers) and information that is helpful when
|
|
a dump is being used to debug a program.</dd>
|
|
<dt id="x2001808" class="bold">
|
|
<a name="x2001808"></a>executable statement</dt>
|
|
<dd>An SQL statement
|
|
that can be embedded in an application program, dynamically prepared and executed,
|
|
or issued interactively.</dd>
|
|
<dt id="x2027229" class="bold">
|
|
<a name="x2027229"></a>execute authority</dt>
|
|
<dd>An object authority
|
|
that allows the user to run a program or procedure or to search a library
|
|
or directory.</dd>
|
|
<dt id="x2199430" class="bold">
|
|
<a name="x2199430"></a>execution diagnostic facility (EDF)</dt>
|
|
<dd>A CICS facility used for testing application programs interactively online,
|
|
without making any modifications to the source program or to the program preparation
|
|
procedure. The facility intercepts execution of the program at various points
|
|
and displays information about the program at these points. Also displayed
|
|
are any screens sent by the user program, so that the programmer can converse
|
|
with the application program during testing just as a user would do on the
|
|
production system.</dd>
|
|
<dt id="x2027249" class="bold">
|
|
<a name="x2027249"></a>exit point</dt>
|
|
<dd>A specific point in a
|
|
system function or program where control may be passed to one or more specified
|
|
exit programs. See also <a href="rzaate.htm#x2027259">exit program</a>.</dd>
|
|
<dt id="x2027254" class="bold">
|
|
<a name="x2027254"></a>exit point provider</dt>
|
|
<dd>The person responsible
|
|
for defining the exit point information, defining the format of the data the
|
|
exit program receives, and calling the exit programs.</dd>
|
|
<dt id="x2027259" class="bold">
|
|
<a name="x2027259"></a>exit program</dt>
|
|
<dd>(1) A program to which control
|
|
is passed from an exit point. See also <a href="rzaate.htm#x2027249">exit point</a>.</dd>
|
|
<dd>(2) A user-written program that is given control during operation
|
|
of a system function.</dd>
|
|
<dt id="x2027267" class="bold">
|
|
<a name="x2027267"></a>exit status</dt>
|
|
<dd>The return value from
|
|
a thread. A variable of type void * typically contains a pointer to a control
|
|
block pointer or a return value that shows under what conditions the thread
|
|
ended.</dd>
|
|
<dt id="x2027277" class="bold">
|
|
<a name="x2027277"></a>expanded communications buffer</dt>
|
|
<dd>A
|
|
feature of the 3741 device that allows multiple records to be transmitted
|
|
or received in one block of data.</dd>
|
|
<dt id="x2027282" class="bold">
|
|
<a name="x2027282"></a>expanded memory</dt>
|
|
<dd>On most computers,
|
|
additional memory accessed through an adapter or feature card along with a
|
|
device driver program. See also <a href="rzaatc.htm#x2018599">conventional memory</a>.</dd>
|
|
<dt id="x2054651" class="bold">
|
|
<a name="x2054651"></a>expansion slot</dt>
|
|
<dd>In personal-computer
|
|
systems, one of several receptacles in the rear panel of the system unit into
|
|
which a user can install an adapter.</dd>
|
|
<dt id="x2027292" class="bold">
|
|
<a name="x2027292"></a>expansion unit</dt>
|
|
<dd>(1) A feature that can
|
|
be connected to a system unit to provide additional storage and processing
|
|
capacity.</dd>
|
|
<dd>(2) A feature that contains I/O hardware such as cards,
|
|
tapes, and disk units. The system may have multiple expansion units. An expansion
|
|
unit can be bolted directly to the side of a system unit and is contained
|
|
within the system unit covers. An expansion unit can also be mounted on top
|
|
of a rack and has its own covers. Internal signal cables interconnect the
|
|
expansion unit to the system unit or rack.</dd>
|
|
<dt id="x2027297" class="bold">
|
|
<a name="x2027297"></a>expedited data</dt>
|
|
<dd>In OSI, a data transfer
|
|
service provided by the session layer to transfer a small amount of data that
|
|
is not subject to permission-to-send and flow-control restrictions. The OSI
|
|
layers attempt to expedite the transfer of such data.</dd>
|
|
<dt id="x2027302" class="bold">
|
|
<a name="x2027302"></a>expedited forwarding</dt>
|
|
<dd>A per-hop behavior
|
|
in the Differentiated Services (DiffServ) standard that is used to create
|
|
a virtual leased line service.</dd>
|
|
<dt id="x2027307" class="bold">
|
|
<a name="x2027307"></a>expert cache</dt>
|
|
<dd>An extension of the
|
|
storage management function of the i5/OS operating system that allows the single-level
|
|
storage architecture to take better advantage of the main storage (cache)
|
|
capacities.</dd>
|
|
<dt id="x2027317" class="bold">
|
|
<a name="x2027317"></a>expiration date</dt>
|
|
<dd>(1) The date at which
|
|
a file is no longer protected against automatic deletion by the system.</dd>
|
|
<dd>(2) The date after which a database file member should not be used.</dd>
|
|
<dt id="x2027325" class="bold">
|
|
<a name="x2027325"></a>expired</dt>
|
|
<dd>In Backup Recovery and Media
|
|
Services, to denote when media is available for a rewrite operation. Media
|
|
is automatically expired when both the retention period (expiration date)
|
|
and storage duration have been satisfied.</dd>
|
|
<dt id="x2210458" class="bold">
|
|
<a name="x2210458"></a>expired password</dt>
|
|
<dd>A password that
|
|
has not been changed within 180 days or more.</dd>
|
|
<dt id="x2027335" class="bold">
|
|
<a name="x2027335"></a>explicit scope terminator</dt>
|
|
<dd>In COBOL,
|
|
a reserved word that ends the scope of a particular Procedure Division statement.</dd>
|
|
<dt id="x2027340" class="bold">
|
|
<a name="x2027340"></a>exponent</dt>
|
|
<dd>(1) In floating-point format,
|
|
an integer constant specifying the power of ten by which the base of the decimal
|
|
floating-point number is to be multiplied.</dd>
|
|
<dd>(2) A number, indicating
|
|
to which power another number (the base) is to be raised.</dd>
|
|
<dt id="x2027351" class="bold">
|
|
<a name="x2027351"></a>exponentiation</dt>
|
|
<dd>The process in which
|
|
a quantity is raised to a power. In COBOL, exponentiation is indicated with
|
|
the symbol ** followed by an exponent.</dd>
|
|
<dt id="x2001853" class="bold">
|
|
<a name="x2001853"></a>export</dt>
|
|
<dd>(1) An external symbol defined
|
|
in a module or service program that is available for use by other modules
|
|
or programs. See also <a href="rzaati.htm#x2002346">import</a>.</dd>
|
|
<dd>(2) In the
|
|
Application Development Manager feature of the Application Development ToolSet
|
|
licensed program, to copy a single part or the components of an application
|
|
from an Application Development Manager project into a particular i5/OS library.</dd>
|
|
<dd>(3) A function or process that converts an internal file to some standard
|
|
file format for use outside of an application.</dd>
|
|
<dd>(4) In Network File
|
|
System (NFS), to make file systems on a server available to remote clients.</dd>
|
|
<dt id="x2027375" class="bold">
|
|
<a name="x2027375"></a>exported form</dt>
|
|
<dd>In query management,
|
|
the source file member that results from running an EXPORT FORM command.</dd>
|
|
<dt id="x2027380" class="bold">
|
|
<a name="x2027380"></a>exported query</dt>
|
|
<dd>In query management,
|
|
the source file member that results from running an EXPORT QUERY command.</dd>
|
|
<dt id="x2001858" class="bold">
|
|
<a name="x2001858"></a>exposed name</dt>
|
|
<dd>A correlation name,
|
|
a table, or a view name specified in a FROM clause for which a correlation
|
|
name is not defined.</dd>
|
|
<dt id="x2001863" class="bold">
|
|
<a name="x2001863"></a>expression</dt>
|
|
<dd>(1) In DDS, a pair of values
|
|
that represents a single parameter value.</dd>
|
|
<dd>(2) In SQL, a representation
|
|
of a value by means of variables or constants, sometimes in combination with
|
|
arithmetic operators.</dd>
|
|
<dd>(3) In REXX, a general means for combining one
|
|
or more pieces of data in various ways to produce a result, usually different
|
|
from the original data. Expressions consist of terms (literal strings, function
|
|
calls, and symbols), and zero or more operators.</dd>
|
|
<dd>(4) In C, a group
|
|
of constants or variables separated by operators that yields a single value.</dd>
|
|
<dt id="x2054705" class="bold">
|
|
<a name="x2054705"></a>EXR</dt>
|
|
<dd>See <a href="rzaate.htm#x2027176">exception
|
|
request</a>.</dd>
|
|
<dt id="x2027403" class="bold">
|
|
<a name="x2027403"></a>Extended Adaptive Cache</dt>
|
|
<dd>A large high-speed
|
|
memory that is used exclusively to store user data that would otherwise have
|
|
been accessed from one or more disks.</dd>
|
|
<dt id="x2027408" class="bold">
|
|
<a name="x2027408"></a>Extended Adaptive Cache Simulator</dt>
|
|
<dd>A performance tool that allows system users to assess the benefits of an Extended
|
|
Adaptive Cache before purchasing one. When the Extended Adaptive Cache simulator
|
|
is active on a specified storage controller, performance information is generated
|
|
for a system's actual workload over time.</dd>
|
|
<dt id="x2027413" class="bold">
|
|
<a name="x2027413"></a>extended attribute</dt>
|
|
<dd>(1) Information attached
|
|
to an object that describes the object to an application system or user.</dd>
|
|
<dd>(2) A characteristic of a shared folder file. Each extended attribute consists
|
|
of a name, a value, and a set of flags.</dd>
|
|
<dt id="x2027421" class="bold">
|
|
<a name="x2027421"></a>extended attribute flag</dt>
|
|
<dd>A flag that
|
|
is stored for the extended attribute, such as the read/write flag.</dd>
|
|
<dt id="x2027426" class="bold">
|
|
<a name="x2027426"></a>extended attribute name</dt>
|
|
<dd>The name
|
|
that identifies the specific extended attribute that is to be stored, changed,
|
|
or retrieved.</dd>
|
|
<dt id="x2027431" class="bold">
|
|
<a name="x2027431"></a>extended attribute subprofile</dt>
|
|
<dd>The
|
|
interchange document subprofile that contains non-DIA extended attributes
|
|
for a document.</dd>
|
|
<dt id="x2027436" class="bold">
|
|
<a name="x2027436"></a>extended attribute value</dt>
|
|
<dd>The data
|
|
stored in an extended attribute.</dd>
|
|
<dt id="x2009089" class="bold">
|
|
<a name="x2009089"></a>Extended Binary Coded Decimal Interchange Code
|
|
(EBCDIC)</dt>
|
|
<dd>A coded character set of 256 8-bit characters developed
|
|
for the representation of textual data. EBCDIC is not compatible with ASCII
|
|
character coding. See also <a href="rzaata.htm#x2014116">American Standard Code for
|
|
Information Interchange</a>.</dd>
|
|
<dt id="x2054724" class="bold">
|
|
<a name="x2054724"></a>extended character</dt>
|
|
<dd>Double-byte characters
|
|
that are stored in a DBCS font file, not in the hardware of a DBCS-capable
|
|
work station. When displaying or printing extended characters, the work station
|
|
receives them from the DBCS font table under control of the extended character
|
|
processing function of the operating system. See also <a href="rzaatb.htm#x2015153">basic character</a>.</dd>
|
|
<dt id="x2027444" class="bold">
|
|
<a name="x2027444"></a>extended character processing</dt>
|
|
<dd>A function
|
|
of the operating system that is required to make characters stored in a DBCS
|
|
font file available to a DBCS-capable work station. Basic characters, which
|
|
are stored in the work station, do not require extended character processing.
|
|
Extended characters, which are stored in a DBCS font table, require extended
|
|
character processing before they can be displayed or printed. See also <a href="rzaatb.htm#x2015153">basic character</a>.</dd>
|
|
<dt id="x2027454" class="bold">
|
|
<a name="x2027454"></a>extended help</dt>
|
|
<dd>Online documentation
|
|
that explains the purpose of the display. Extended help appears if the user
|
|
presses the Help key when the cursor is outside the areas for which contextual
|
|
help is available.</dd>
|
|
<dt id="x2027459" class="bold">
|
|
<a name="x2027459"></a>extended interface</dt>
|
|
<dd>In query management,
|
|
the set of language-specific interfaces used to run commands that require
|
|
access to program variables. The extended interface includes: communications
|
|
area; command length; command string; number of keywords or variables; array
|
|
of keyword or variable name lengths; array of keyword or variable names; array
|
|
of keyword or variable value lengths; array of keyword or variable values;
|
|
and value type.</dd>
|
|
<dt id="x2027464" class="bold">
|
|
<a name="x2027464"></a>extended memory</dt>
|
|
<dd>Personal computer
|
|
memory that is addressed by DOS, from 1 MB to 16 MB, to increase conventional
|
|
memory and expanded memory.</dd>
|
|
<dt id="x2027469" class="bold">
|
|
<a name="x2027469"></a>extended parameter list</dt>
|
|
<dd>In query
|
|
management, the arguments of the extended interface that are not defined on
|
|
the short interface.</dd>
|
|
<dt id="x2027474" class="bold">
|
|
<a name="x2027474"></a>extended UNIX coded character set (EUC)</dt>
|
|
<dd>A set of characters that contains mixed characters. EUC is the mixture
|
|
of the ISO 7- or 8-bit code page and up to 3 other code pages that can have
|
|
characters represented internally in 1 to 3 bytes. Extended UNIX coded character
|
|
set uses multiple shift-in and shift-out control characters and TCP/IP escape
|
|
sequences within the data stream to switch between four different character
|
|
sets.</dd>
|
|
<dt id="x2027479" class="bold">
|
|
<a name="x2027479"></a>extend mode</dt>
|
|
<dd>(1) In COBOL, the state of
|
|
a file after running an OPEN statement, with the EXTEND phrase specified for
|
|
that file, and before running a CLOSE statement, without the REEL or UNIT
|
|
phrase specified for that file.</dd>
|
|
<dd>(2) In COBOL, a method of adding records
|
|
to the end of a sequential file when the file is opened.</dd>
|
|
<dt id="x2027487" class="bold">
|
|
<a name="x2027487"></a>Extensible Markup Language (XML)</dt>
|
|
<dd>A standard metalanguage for defining markup languages that is based on Standard
|
|
Generalized Markup Language (SGML). XML simplifies the process of authoring
|
|
and managing structured information and transmitting and sharing structured
|
|
information across diverse computing systems.</dd>
|
|
<dt id="x2027492" class="bold">
|
|
<a name="x2027492"></a>external data</dt>
|
|
<dd>(1) Data that is exported
|
|
from one procedure and imported into another procedure. See also <a href="rzaati.htm#x2025832">internal data</a>.</dd>
|
|
<dd>(2) In COBOL, the data described in a program as
|
|
external data items and external file connectors.</dd>
|
|
<dt id="x2027500" class="bold">
|
|
<a name="x2027500"></a>external data definition</dt>
|
|
<dd>A description
|
|
of a variable appearing outside a function. It causes the system to allocate
|
|
storage for that variable and makes that variable accessible to all functions
|
|
that follow the definition and are located in the same file as the definition.</dd>
|
|
<dt id="x2027505" class="bold">
|
|
<a name="x2027505"></a>external data item</dt>
|
|
<dd>In COBOL, a data
|
|
item that is described as part of an external record in one or more programs
|
|
of a run unit and which itself may be referred to from any program in which
|
|
it is described.</dd>
|
|
<dt id="x2027510" class="bold">
|
|
<a name="x2027510"></a>external data record</dt>
|
|
<dd>In COBOL, a
|
|
logical record that is described in one or more programs of a run unit and
|
|
whose constituent data items may be referred to from any program in which
|
|
they are described.</dd>
|
|
<dt id="x2027515" class="bold">
|
|
<a name="x2027515"></a>external file connector</dt>
|
|
<dd>In COBOL,
|
|
a file connector that is accessible to one or more programs in the run unit.</dd>
|
|
<dt id="x2027520" class="bold">
|
|
<a name="x2027520"></a>external indicator</dt>
|
|
<dd>In RPG, an indicator
|
|
that can be set by another program before a program is run, or changed by
|
|
another program while the program is running. Valid external indicators are
|
|
U1 through U8.</dd>
|
|
<dt id="x2027525" class="bold">
|
|
<a name="x2027525"></a>externalized form</dt>
|
|
<dd>In query management,
|
|
the name of the file resulting from running an EXPORT command against a form.</dd>
|
|
<dt id="x2027530" class="bold">
|
|
<a name="x2027530"></a>externalized query</dt>
|
|
<dd>In query management,
|
|
the name of the form resulting from running an EXPORT command against a query.</dd>
|
|
<dt id="x2027535" class="bold">
|
|
<a name="x2027535"></a>externally described data</dt>
|
|
<dd>Data contained
|
|
in a file for which the fields and the records are described outside of the
|
|
program (such as with files created by DDS, IDDU, or DB2 UDB for iSeries) that processes the file.</dd>
|
|
<dt id="x2027540" class="bold">
|
|
<a name="x2027540"></a>externally described file</dt>
|
|
<dd>A file
|
|
in which the records and fields are described to the system when the file
|
|
is created, and used by the program when the file is processed. See also <a href="rzaatp.htm#x2035008">program-described data</a>, <a href="rzaatp.htm#x2035013">program-described
|
|
file</a>.</dd>
|
|
<dt id="x2027545" class="bold">
|
|
<a name="x2027545"></a>external message queue</dt>
|
|
<dd>A message
|
|
queue used by all programs and procedures running within a job to send and
|
|
to receive messages outside a job, for example, between an interactive job
|
|
and the workstation user.</dd>
|
|
<dt id="x2027550" class="bold">
|
|
<a name="x2027550"></a>external object</dt>
|
|
<dd>An object that has
|
|
a defined object type (such as *FILE or *PGM). In general, external objects
|
|
can be displayed by a user. See also <a href="rzaati.htm#x2025859">internal object</a>.</dd>
|
|
<dt id="x2027555" class="bold">
|
|
<a name="x2027555"></a>external procedure</dt>
|
|
<dd>A procedure that
|
|
is not contained within a block.</dd>
|
|
<dt id="x2001898" class="bold">
|
|
<a name="x2001898"></a>external routine</dt>
|
|
<dd>In REXX, a program
|
|
external to the user's program, language processor, or both. These routines
|
|
can be written in any language (including REXX) that supports the system-dependent
|
|
interfaces used by REXX to start it.</dd>
|
|
<dt id="x2027563" class="bold">
|
|
<a name="x2027563"></a>external storage</dt>
|
|
<dd>Data storage not
|
|
located in main or auxiliary storage, such as tape or diskette.</dd>
|
|
<dt id="x2027568" class="bold">
|
|
<a name="x2027568"></a>external switch</dt>
|
|
<dd>In COBOL, a hardware
|
|
or software device, defined and named by the compiler, that is used to indicate
|
|
that one of two states exists.</dd>
|
|
<dt id="x2027573" class="bold">
|
|
<a name="x2027573"></a>external symbol</dt>
|
|
<dd>(1) An item defined in
|
|
a high-level language program that represents such things as procedures or
|
|
variables. Resolving external symbols is the means by which the binder connects
|
|
modules to form a bound program or a service program.</dd>
|
|
<dd>(2) An entry-point
|
|
name or external variable that is defined or referred to in a particular module
|
|
or program.</dd>
|
|
<dt id="x2027581" class="bold">
|
|
<a name="x2027581"></a>external system</dt>
|
|
<dd>A system that exists
|
|
outside a particular network.</dd>
|
|
<dt id="x2027586" class="bold">
|
|
<a name="x2027586"></a>external variable</dt>
|
|
<dd>A variable that
|
|
is outside the lexical scope of the function, procedure, or program that is
|
|
calling it.</dd>
|
|
<dt id="x2027591" class="bold">
|
|
<a name="x2027591"></a>extract service</dt>
|
|
<dd>In OSI, a callable
|
|
service that obtains optional information from OSI Communications Subsystem.
|
|
See also <a href="rzaata.htm#x2012979">action service</a>, <a href="rzaats.htm#x2038604">set services</a>.</dd>
|
|
<dt id="x2027596" class="bold">
|
|
<a name="x2027596"></a>extranet</dt>
|
|
<dd>A private, virtual network
|
|
that uses access control and security features to restrict the usage of one
|
|
or more intranets attached to the Internet to selected subscribers (such as
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personnel from a sponsoring company and its business partners).</dd>
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<dt id="x2027601" class="bold">
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<a name="x2027601"></a>extrapartition</dt>
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<dd>In CICS, a type of
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|
transient data queue. Extrapartition destinations can be accessed either within
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|
the CICS environment or outside of CICS ; they can be defined as either input
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or output.</dd>
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<dt id="x2027606" class="bold">
|
|
<a name="x2027606"></a>EZ-Setup</dt>
|
|
<dd>A wizard that allows user
|
|
to install iSeries Navigator; set the system name, date, time, and some basic security
|
|
values, and perform some other tasks.</dd></dl>
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|
<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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