666 lines
33 KiB
HTML
666 lines
33 KiB
HTML
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<?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>U</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="u"></a>
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<h2 id="u">U</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="x2042351" class="bold">
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<a name="x2042351"></a>UA</dt>
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<dd>(1) See <a href="rzaatu.htm#x2042610">unnumbered
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acknowledgment</a>.</dd>
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<dd>(2) See <a href="rzaatu.htm#x2042736">user agent</a>.</dd>
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<dt id="x2042355" class="bold">
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<a name="x2042355"></a>UCS</dt>
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<dd>See <a href="rzaatu.htm#x2042560">universal
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character set</a>.</dd>
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<dt id="x2042359" class="bold">
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<a name="x2042359"></a>UCS-2</dt>
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<dd>A 2-byte (16-bit) encoding
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scheme based on ISO/IEC specification 10646-1. UCS-2 defines three levels
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of implementation: Level 1-No combining of encoded elements allowed. Level
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2-Combining of encoded elements is allowed only for Thai, Indic, Hebrew, and
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Arabic. Level 3-Any combination of encoded elements are allowed.</dd>
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<dt id="x2042364" class="bold">
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<a name="x2042364"></a>UDC</dt>
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<dd>See <a href="rzaatu.htm#x2042776">user-defined
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character</a>.</dd>
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<dt id="x2042368" class="bold">
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<a name="x2042368"></a>UDDS</dt>
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<dd>See <a href="rzaatu.htm#x2042791">user-defined
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data stream</a>.</dd>
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<dt id="x2009707" class="bold">
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<a name="x2009707"></a>UDF</dt>
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<dd>See <a href="rzaatu.htm#x2005613">user-defined
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function</a>.</dd>
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<dt id="x2210556" class="bold">
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<a name="x2210556"></a>UDFS disk pool</dt>
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<dd>An independent disk
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pool that contains only user-defined file systems. It cannot be a member of
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a disk pool group unless it is converted to a primary or secondary disk pool.</dd>
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<dt id="x2395017" class="bold">
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<a name="x2395017"></a>UDP</dt>
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<dd>See <a href="rzaatu.htm#x2042771">User
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Datagram Protocol</a>.</dd>
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<dt id="x2010819" class="bold">
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<a name="x2010819"></a>UDT</dt>
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<dd>See <a href="rzaatu.htm#x2010813">user-defined
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type</a>.</dd>
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<dt id="x2042380" class="bold">
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<a name="x2042380"></a>UEP</dt>
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<dd>See <a href="rzaatu.htm#x2042817">user
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entry procedure</a>.</dd>
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<dt id="x2093010" class="bold">
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<a name="x2093010"></a>UI</dt>
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<dd>See <a href="rzaatg.htm#x2023884">graphical
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user interface</a>.</dd>
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<dt id="x2044321" class="bold">
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<a name="x2044321"></a>uid</dt>
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<dd>See <a href="rzaatu.htm#x2044316">user
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identification number</a>.</dd>
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<dt id="x2068007" class="bold">
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<a name="x2068007"></a>UID</dt>
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<dd>See <a href="rzaatu.htm#x2042841">user
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identification</a>.</dd>
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<dt id="x2042388" class="bold">
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<a name="x2042388"></a>UIM</dt>
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<dd>See <a href="rzaatu.htm#x2042859">user
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interface manager</a>.</dd>
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<dt id="x2042392" class="bold">
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<a name="x2042392"></a>UIM tag language</dt>
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<dd>An iSeries™ language
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supported by the user interface manager to define panels, menus, and help
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items.</dd>
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<dt id="x2042397" class="bold">
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<a name="x2042397"></a>U interface</dt>
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<dd>In the reference model
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for the integrated services digital network (ISDN), the interface that includes
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the transmission line between the network terminator 1 (NT1) and the line
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transmission termination (LT).</dd>
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<dt id="x2042402" class="bold">
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<a name="x2042402"></a>Ultimedia Business Conferencing</dt>
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<dd>An IBM® licensed program that provides a solution for desktop business conferencing.
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Ultimedia Business Conferencing is a cooperative processing application that
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manages the conference from scheduling to completion.</dd>
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<dt id="x2042407" class="bold">
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<a name="x2042407"></a>unacknowledged service</dt>
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<dd>In communications,
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a data transfer service that does not provide for an acknowledgment from data
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receiver to data sender that the data was received. An active data link connection
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does not need to be established between receiver and sender before sending
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the data. See also <a href="rzaata.htm#x2012914">acknowledged service</a>.</dd>
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<dt id="x2042412" class="bold">
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<a name="x2042412"></a>unary expression</dt>
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<dd>An expression that
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contains one operand.</dd>
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<dt id="x2042417" class="bold">
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<a name="x2042417"></a>unary operator</dt>
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<dd>In COBOL, a plus sign
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(+) or a minus sign (-) that precedes a variable or a left parenthesis in
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an arithmetic expression, which has the effect of multiplying the expression
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by +1 or -1, respectively.</dd>
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<dt id="x2042422" class="bold">
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<a name="x2042422"></a>unattended mode</dt>
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<dd>In Operations Console,
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a state of the system when the local controlling system can automatically
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grant access to a remote request for control of the iSeries system as
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long as the local controlling system does not have control at the time of
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the request.</dd>
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<dt id="x2042432" class="bold">
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<a name="x2042432"></a>UNBIND command</dt>
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<dd>In SNA, a command
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used to reset the protocols for a session. See also <a href="rzaatb.htm#x2015430">BIND command</a>.</dd>
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<dt id="x2042437" class="bold">
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<a name="x2042437"></a>unblocked signal</dt>
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<dd>In POSIX, a condition
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that allows a signal-handling action associated with a signal to be performed.
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See also <a href="rzaatb.htm#x2015539">blocked signal</a>.</dd>
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<dt id="x2042442" class="bold">
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<a name="x2042442"></a>UNC</dt>
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<dd>See <a href="rzaatu.htm#x2293205">Universal
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Naming Convention</a>.</dd>
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<dt id="x2005513" class="bold">
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<a name="x2005513"></a>uncommitted read</dt>
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<dd>In DB2® UDB for iSeries, for a read-only cursor, an isolation level that permits any row read
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during a unit of work to be changed by application processes that are running
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concurrently, and permits any row changed by application processes that are
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running concurrently to be read even if that change has not been committed.
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For a cursor that can be updated, the uncommitted read level is identical
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to cursor stability. See also <a href="rzaatr.htm#x2004214">repeatable read</a>.</dd>
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<dt id="x2042449" class="bold">
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<a name="x2042449"></a>unconfirmed service</dt>
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<dd>In OSI, a service
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that does not indicate to the sender whether or not data or control information
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was properly received. An unconfirmed service involves only request and indication
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service primitives. See also <a href="rzaatc.htm#x2018184">confirmed service</a>.</dd>
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<dt id="x2042454" class="bold">
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<a name="x2042454"></a>undelivered message queue</dt>
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<dd>See <a href="rzaatd.htm#x2019809">dead-letter queue</a>.</dd>
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<dt id="x2042458" class="bold">
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<a name="x2042458"></a>underrun</dt>
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<dd>Loss of data caused by the
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inability of a transmitting device or channel to provide data to the communications
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control logic at a rate that is fast enough for the attached data link or
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loop.</dd>
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<dt id="x2042468" class="bold">
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<a name="x2042468"></a>unformatted</dt>
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<dd>Pertaining to something
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that is not defined, organized, or arranged in a required manner.</dd>
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<dt id="x2042481" class="bold">
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<a name="x2042481"></a>unformatted system service (USS)</dt>
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<dd>A communications function that translates a character-coded command, such
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as a LOGON or LOGOFF command, into a field-formatted command for processing
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by formatted system services. USS translates field-formatted replies and
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responses into character-coded requests for processing by a logical unit.
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See also <a href="rzaatf.htm#x2055404">formatted system service</a>.</dd>
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<dt id="x2068039" class="bold">
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<a name="x2068039"></a>unicast</dt>
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<dd>Transmission of data to a
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single destination. See also <a href="rzaatm.htm#x2060518">multicast</a>.</dd>
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<dt id="x2042486" class="bold">
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<a name="x2042486"></a>unidentified user</dt>
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<dd>A user of the i5/OS™ licensed program who uses the services of i5/OS but who is not automatically reported
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on by the license management function of i5/OS. An example of an unidentified user is
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one who accesses an iSeries server through a gateway server that is not iSeries.</dd>
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<dt id="x2042491" class="bold">
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<a name="x2042491"></a>Uniform Resource Locator (URL)</dt>
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<dd>The
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unique address of a file that is accessible in a network such as the Internet.
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The URL includes the abbreviated name of the protocol used to access the information
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resource and the information used by the protocol to locate the information
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resource.</dd>
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<dt id="x2042496" class="bold">
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<a name="x2042496"></a>uninterruptible power supply</dt>
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<dd>A source of power from a battery installed between the commercial power
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and the system that keeps the system running, if a commercial power failure
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occurs, until it can complete an orderly end to system processing.</dd>
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<dt id="x2042501" class="bold">
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<a name="x2042501"></a>union</dt>
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<dd>(1) In the C language, a variable
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that can hold any one of several data types, one data type at a time.</dd>
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<dd>(2) An SQL operation that combines the results of two select statements.
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Unions are often used to merge lists of values that are obtained from several
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tables.</dd>
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<dt id="x2005538" class="bold">
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<a name="x2005538"></a>unique constraint</dt>
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<dd>The rule that no
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two values in a primary key or key of a unique index can be the same. See
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also <a href="rzaatc.htm#x2000579">check constraint</a>, <a href="rzaatr.htm#x2004096">referential
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constraint</a>.</dd>
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<dt id="x2005543" class="bold">
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<a name="x2005543"></a>unique index</dt>
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<dd>An index that ensures
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that no identical key values are stored in a table.</dd>
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<dt id="x2005548" class="bold">
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<a name="x2005548"></a>unique key</dt>
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<dd>(1) A field or set of fields
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in a database file that must be unique, ascending, and cannot contain a null
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value. A unique key can become a parent key.</dd>
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<dd>(2) A key that is constrained
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so that no two of its values are equal.</dd>
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<dt id="x2042518" class="bold">
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<a name="x2042518"></a>unique product</dt>
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<dd>A product that is
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uniquely identified to the i5/OS operating system by a product identifier
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(product ID) and version, release, and modification identifiers (Vx, Rx, Mx).</dd>
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<dt id="x2042523" class="bold">
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<a name="x2042523"></a>unique-weight sort sequence</dt>
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<dd>A sort
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sequence in which each graphic character in the sequence has a weight different
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from the weight of every other graphic character in the sequence.</dd>
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<dt id="x2042528" class="bold">
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<a name="x2042528"></a>unit</dt>
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<dd>The defined space within disk
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units that is addressed by the system.</dd>
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<dt id="x2042533" class="bold">
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<a name="x2042533"></a>unit number</dt>
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<dd>The unique identifier
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of a storage unit within a disk unit or a disk unit subsystem configured on
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the system.</dd>
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<dt id="x2005553" class="bold">
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<a name="x2005553"></a>unit of recovery</dt>
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<dd>A sequence of operations
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within a unit of work between commit points. See also <a href="rzaatc.htm#x2018372">context</a>.</dd>
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<dt id="x2005558" class="bold">
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<a name="x2005558"></a>unit of work</dt>
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<dd>(1) In DB2 UDB for iSeries, a sequence of SQL commands that the database management system (DBMS)
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treats as a single entity. The DBMS ensures the consistency of data by verifying
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that either all the data changes made during a unit of work are performed
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or none of them are performed.</dd>
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<dd>(2) In advanced program-to-program
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communications, the amount of processing that is started directly or indirectly
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by a program on the source system.</dd>
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<dd>(3) A recoverable sequence of operations
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performed by an application between two points of consistency. A unit of work
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begins when a transaction starts or at a user-requested syncpoint. It ends
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either at a user-requested syncpoint or at the end of a transaction.</dd>
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<dt id="x2042550" class="bold">
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<a name="x2042550"></a>unit-of-work identifier</dt>
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<dd>In advanced
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program-to-program communications, a unique label assigned to the unit of
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work. The ID is established when the program on the source system is started
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and is associated with each job started by that source system on the target
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system. The unit-of-work identifier provides a beginning-to-end audit trail
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within an APPC network.</dd>
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<dt id="x2042555" class="bold">
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<a name="x2042555"></a>unit reference code (URC)</dt>
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<dd>(1) A group
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of numbers displayed on the console or control panel that identifies failing
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parts, system or device states, or system or device status conditions.</dd>
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<dd>(2) The last 4 characters of the SRC.</dd>
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<dt id="x2042560" class="bold">
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<a name="x2042560"></a>universal character set (UCS)</dt>
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<dd>The
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ISO-9000 standard that allows all data to be represented as 2 bytes (UCS-2)
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or 4 bytes (UCS-4). Encoding in the UCS-2 form can accommodate the necessary
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characters for most of the world's written languages.</dd>
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<dt id="x2293205" class="bold">
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<a name="x2293205"></a>Universal Naming Convention (UNC)</dt>
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|
|
<dd>The server name and network name (netname) combined. These names together
|
||
|
|
identify the resource on the domain.</dd>
|
||
|
|
<dt id="x2042570" class="bold">
|
||
|
|
<a name="x2042570"></a>Universal Serial Bus (USB)</dt>
|
||
|
|
<dd>A serial-interface
|
||
|
|
standard for telephony and multimedia connections to personal computers.</dd>
|
||
|
|
<dt id="x2042580" class="bold">
|
||
|
|
<a name="x2042580"></a>UNIX® operating system</dt>
|
||
|
|
<dd>An operating
|
||
|
|
system, developed by Bell Laboratories, that features multiprogramming in
|
||
|
|
a multiuser environment. The UNIX operating system was originally developed
|
||
|
|
for use on minicomputers, but has been adapted for mainframes and microcomputers.
|
||
|
|
The AIX® operating system is IBM's implementation of the UNIX operating
|
||
|
|
system.</dd>
|
||
|
|
<dt id="x2042585" class="bold">
|
||
|
|
<a name="x2042585"></a>unlike</dt>
|
||
|
|
<dd>Pertaining to two or more
|
||
|
|
different operating environments. For example, unlike distribution is distribution
|
||
|
|
between DB2 UDB for iSeries and DB2 UDB environments.</dd>
|
||
|
|
<dt id="x2042590" class="bold">
|
||
|
|
<a name="x2042590"></a>unlink</dt>
|
||
|
|
<dd>In IDDU, to remove the association
|
||
|
|
between a database file on disk and a file definition in a data dictionary.
|
||
|
|
See also <a href="rzaatl.htm#x2028690">link</a>.</dd>
|
||
|
|
<dt id="x2042595" class="bold">
|
||
|
|
<a name="x2042595"></a>unload</dt>
|
||
|
|
<dd>To remove a volume from a
|
||
|
|
tape unit or a direct access device.</dd>
|
||
|
|
<dt id="x2210245" class="bold">
|
||
|
|
<a name="x2210245"></a>unloaded</dt>
|
||
|
|
<dd>Pertaining to a status where
|
||
|
|
the optical image associated with the selected image catalog entry that is
|
||
|
|
not active or not loaded in the active virtual optical device. Only image
|
||
|
|
catalog entries with a status of mounted or loaded can be accessed through
|
||
|
|
the virtual optical device.</dd>
|
||
|
|
<dt id="x2005568" class="bold">
|
||
|
|
<a name="x2005568"></a>unlock</dt>
|
||
|
|
<dd>To release an object or system
|
||
|
|
resource that was previously locked and return it to general availability.</dd>
|
||
|
|
<dt id="x2042605" class="bold">
|
||
|
|
<a name="x2042605"></a>unnumbered</dt>
|
||
|
|
<dd>In communications, pertaining
|
||
|
|
to a frame format that provides additional control functions, such as XID,
|
||
|
|
DISC, DM, SABM, SABME, UA, and FRMR.</dd>
|
||
|
|
<dt id="x2042610" class="bold">
|
||
|
|
<a name="x2042610"></a>unnumbered acknowledgment (UA)</dt>
|
||
|
|
<dd>In
|
||
|
|
communications, a data link command or response that acknowledges the receipt
|
||
|
|
and acceptance of the SABM, SABME, and DISC command protocol data units.</dd>
|
||
|
|
<dt id="x2042615" class="bold">
|
||
|
|
<a name="x2042615"></a>unordered</dt>
|
||
|
|
<dd>In binary floating-point,
|
||
|
|
describing the relationship that exists between two values when they cannot
|
||
|
|
be arranged according to relative value. The relationship between two values
|
||
|
|
is unordered either when a not-a-number is compared to any value or when infinity
|
||
|
|
is compared to any value other than infinity.</dd>
|
||
|
|
<dt id="x2048019" class="bold">
|
||
|
|
<a name="x2048019"></a>unpacked decimal format</dt>
|
||
|
|
<dd>See <a href="rzaatz.htm#x2043488">zoned decimal format</a>. See also <a href="rzaatp.htm#x2032897">packed decimal format</a>.</dd>
|
||
|
|
<dt id="x2042620" class="bold">
|
||
|
|
<a name="x2042620"></a>unprotected conversation</dt>
|
||
|
|
<dd>An LU 6.2
|
||
|
|
conversation that has a synchronization level of none or confirm. If conversation
|
||
|
|
errors or failures occur, the resources used by the application may be in
|
||
|
|
inconsistent states. See also <a href="rzaatp.htm#x2003940">protected conversation</a>.</dd>
|
||
|
|
<dt id="x2042625" class="bold">
|
||
|
|
<a name="x2042625"></a>unprotected field</dt>
|
||
|
|
<dd>A displayed field
|
||
|
|
in which a user can enter, modify, or delete data.</dd>
|
||
|
|
<dt id="x2042635" class="bold">
|
||
|
|
<a name="x2042635"></a>unprotected logical unit of work</dt>
|
||
|
|
<dd>The logical unit of work that is used in an unprotected conversation.</dd>
|
||
|
|
<dt id="x2042630" class="bold">
|
||
|
|
<a name="x2042630"></a>unprotected logical unit of work identifier</dt>
|
||
|
|
<dd>The logical unit of work identifier that is used in an unprotected conversation.</dd>
|
||
|
|
<dt id="x2042640" class="bold">
|
||
|
|
<a name="x2042640"></a>unprotected storage</dt>
|
||
|
|
<dd>The part of the
|
||
|
|
system auxiliary storage pool (ASP) that is not protected by mirrored protection
|
||
|
|
or device parity protection.</dd>
|
||
|
|
<dt id="x2042645" class="bold">
|
||
|
|
<a name="x2042645"></a>unresolved import</dt>
|
||
|
|
<dd>An import whose
|
||
|
|
type and name do not yet match the type and name of an export.</dd>
|
||
|
|
<dt id="x2042650" class="bold">
|
||
|
|
<a name="x2042650"></a>untrusted system</dt>
|
||
|
|
<dd>A system in a network
|
||
|
|
over which you do not have control of security.</dd>
|
||
|
|
<dt id="x2235695" class="bold">
|
||
|
|
<a name="x2235695"></a>unusable</dt>
|
||
|
|
<dd>In cross-site mirroring,
|
||
|
|
pertaining to the mirror copy data state that indicates that the mirror copy
|
||
|
|
contains incoherent data. This occurs (a) during synchronization because synchronization
|
||
|
|
does not preserve the order of writes and (b) if a failure occurs while performing
|
||
|
|
geographic mirroring in asynchronous mode.</dd>
|
||
|
|
<dt id="x2042660" class="bold">
|
||
|
|
<a name="x2042660"></a>update authority</dt>
|
||
|
|
<dd>A data authority
|
||
|
|
that allows the user to change the data in an object, such as a journal, a
|
||
|
|
message queue, or a data area.</dd>
|
||
|
|
<dt id="x2042665" class="bold">
|
||
|
|
<a name="x2042665"></a>update file</dt>
|
||
|
|
<dd>In RPG, a file from which
|
||
|
|
a program reads a record, changes data fields in the record, and writes the
|
||
|
|
record back to the location from which it came.</dd>
|
||
|
|
<dt id="x2006464" class="bold">
|
||
|
|
<a name="x2006464"></a>update lock</dt>
|
||
|
|
<dd>A lock that limits concurrently
|
||
|
|
executing application processes to read-only operations on the data if these
|
||
|
|
processes have not declared that they might update the row.</dd>
|
||
|
|
<dt id="x2042670" class="bold">
|
||
|
|
<a name="x2042670"></a>update operation</dt>
|
||
|
|
<dd>An I/O process that
|
||
|
|
changes the data in a record.</dd>
|
||
|
|
<dt id="x2005578" class="bold">
|
||
|
|
<a name="x2005578"></a>update rule</dt>
|
||
|
|
<dd>A condition enforced
|
||
|
|
by the database manager that must be met before a column can be updated.</dd>
|
||
|
|
<dt id="x2005583" class="bold">
|
||
|
|
<a name="x2005583"></a>update trigger</dt>
|
||
|
|
<dd>A trigger that is
|
||
|
|
defined with the triggering SQL operation UPDATE.</dd>
|
||
|
|
<dt id="x2042685" class="bold">
|
||
|
|
<a name="x2042685"></a>upgrade</dt>
|
||
|
|
<dd>(1) Any hardware or software
|
||
|
|
change to a later release, or any hardware addition or software addition.</dd>
|
||
|
|
<dd>(2) To add or replace hardware or software with newer models or releases.</dd>
|
||
|
|
<dt id="x2042698" class="bold">
|
||
|
|
<a name="x2042698"></a>upline</dt>
|
||
|
|
<dd>Pertaining to controllers
|
||
|
|
that are above devices, and lines that are above controllers in a communications
|
||
|
|
configuration. See also <a href="rzaatd.htm#x2021334">downline</a>.</dd>
|
||
|
|
<dt id="x2042703" class="bold">
|
||
|
|
<a name="x2042703"></a>upload</dt>
|
||
|
|
<dd>To transmit data from a computer
|
||
|
|
to a central computer or network, or to an attached device such as a printer.</dd>
|
||
|
|
<dt id="x2005588" class="bold">
|
||
|
|
<a name="x2005588"></a>upstream</dt>
|
||
|
|
<dd>Pertaining to the direction
|
||
|
|
opposite to data flow, which is toward the source of a transmission. See also <a href="rzaatd.htm#x2021344">downstream</a>.</dd>
|
||
|
|
<dt id="x2042714" class="bold">
|
||
|
|
<a name="x2042714"></a>URC</dt>
|
||
|
|
<dd>See <a href="rzaatu.htm#x2042555">unit
|
||
|
|
reference code</a>.</dd>
|
||
|
|
<dt id="x2042718" class="bold">
|
||
|
|
<a name="x2042718"></a>URL</dt>
|
||
|
|
<dd>See <a href="rzaatu.htm#x2042491">Uniform
|
||
|
|
Resource Locator</a>.</dd>
|
||
|
|
<dt id="x2166614" class="bold">
|
||
|
|
<a name="x2166614"></a>usable</dt>
|
||
|
|
<dd>In cross-site mirroring, pertaining
|
||
|
|
to the mirror copy data state that indicates that the correct order of updates
|
||
|
|
to the mirror copy from the production copy is being preserved, but the mirror
|
||
|
|
copy may be outdated. The usable mirror copy data state occurs (a) when the
|
||
|
|
system performs geographic mirroring in synchronous mode, (b) after successfully
|
||
|
|
suspending geographic mirroring, and (c) when the mirror copy is successfully
|
||
|
|
detached.</dd>
|
||
|
|
<dt id="x2042722" class="bold">
|
||
|
|
<a name="x2042722"></a>usage type</dt>
|
||
|
|
<dd>In i5/OS, a license
|
||
|
|
management function that monitors usage by tracking the number of license
|
||
|
|
users. Concurrent usage type indicates the usage limit is for the number of
|
||
|
|
unique jobs using the product at the same time. Registered usage type indicates
|
||
|
|
the usage limit is for the number of unique license users registered to use
|
||
|
|
the product.</dd>
|
||
|
|
<dt id="x2042727" class="bold">
|
||
|
|
<a name="x2042727"></a>USB</dt>
|
||
|
|
<dd>See <a href="rzaatu.htm#x2042570">Universal
|
||
|
|
Serial Bus</a>.</dd>
|
||
|
|
<dt id="x2042731" class="bold">
|
||
|
|
<a name="x2042731"></a>use authority</dt>
|
||
|
|
<dd>An object authority
|
||
|
|
that allows the user to run a program or to display the contents of a file.
|
||
|
|
Use authority combines object operational authority, read authority, and execute
|
||
|
|
authority.</dd>
|
||
|
|
<dt id="x2042736" class="bold">
|
||
|
|
<a name="x2042736"></a>user agent (UA)</dt>
|
||
|
|
<dd>In OSI X.400, one
|
||
|
|
of two basic parts of electronic mail. A user agent is a program that provides
|
||
|
|
access to the mail system. This program allows users to compose, send, and
|
||
|
|
receive mail.</dd>
|
||
|
|
<dt id="x2042741" class="bold">
|
||
|
|
<a name="x2042741"></a>user ASP</dt>
|
||
|
|
<dd>(1) One or more auxiliary storage
|
||
|
|
pools used to isolate journals, journal receivers, and save files from the
|
||
|
|
other system objects stored in the system ASP. See also <a href="rzaats.htm#x2040586">system ASP</a>, <a href="rzaata.htm#x2014852">auxiliary storage pool</a>.</dd>
|
||
|
|
<dd>(2) One or more storage units used to isolate some objects from the other objects
|
||
|
|
that are stored in the system ASP and other user ASPs. User ASPs are defined
|
||
|
|
by the user.</dd>
|
||
|
|
<dt id="x2042746" class="bold">
|
||
|
|
<a name="x2042746"></a>user-based pricing</dt>
|
||
|
|
<dd>A pricing option
|
||
|
|
that provides the capability for the customer to pay for the licensed program
|
||
|
|
on the basis of the number of users.</dd>
|
||
|
|
<dt id="x2042751" class="bold">
|
||
|
|
<a name="x2042751"></a>user class</dt>
|
||
|
|
<dd>The classification of
|
||
|
|
a user by the system task, such as security officer, security administrator,
|
||
|
|
programmer, system operator, and user. Each user class has a set of special
|
||
|
|
authorities depending on the security level of the system. The user class
|
||
|
|
determines which options are shown on the IBM-supplied menus.</dd>
|
||
|
|
<dt id="x2042756" class="bold">
|
||
|
|
<a name="x2042756"></a>user configuration</dt>
|
||
|
|
<dd>In iSeries Access, the
|
||
|
|
set of files, created by the iSeries Access administrator, that define the
|
||
|
|
user's iSeries Access configuration and the functions used. The files include
|
||
|
|
the configuration file and the command file.</dd>
|
||
|
|
<dt id="x2042761" class="bold">
|
||
|
|
<a name="x2042761"></a>user-controlled environment</dt>
|
||
|
|
<dd>An extended
|
||
|
|
program model (EPM) environment that is explicitly created using the QPXXCALL
|
||
|
|
program.</dd>
|
||
|
|
<dt id="x2042766" class="bold">
|
||
|
|
<a name="x2042766"></a>user-created data stream</dt>
|
||
|
|
<dd>A data stream
|
||
|
|
that has not been validated by a system program on the system when the data
|
||
|
|
was spooled.</dd>
|
||
|
|
<dt id="x2042771" class="bold">
|
||
|
|
<a name="x2042771"></a>User Datagram Protocol (UDP)</dt>
|
||
|
|
<dd>An Internet
|
||
|
|
protocol that provides unreliable, connectionless datagram service. It enables
|
||
|
|
an application program on one machine or process to send a datagram to an
|
||
|
|
application program on another machine or process.</dd>
|
||
|
|
<dt id="x2042776" class="bold">
|
||
|
|
<a name="x2042776"></a>user-defined character (UDC)</dt>
|
||
|
|
<dd>A character
|
||
|
|
that is created through the Character Generator Utility (CGU). CGU is an extension
|
||
|
|
of the code page with special user-defined ideographic characters, symbols,
|
||
|
|
or logos. User-defined characters may be present in some of the Japanese,
|
||
|
|
Chinese, and Korean code pages.</dd>
|
||
|
|
<dt id="x2042781" class="bold">
|
||
|
|
<a name="x2042781"></a>user-defined collating sequence</dt>
|
||
|
|
<dd>In Query, a collating sequence defined by the user that replaces the EBCDIC
|
||
|
|
collating sequence provided by the system for sorting fields in a query report.</dd>
|
||
|
|
<dt id="x2042786" class="bold">
|
||
|
|
<a name="x2042786"></a>user-defined communications support</dt>
|
||
|
|
<dd>An i5/OS function that provides an application program interface (API).
|
||
|
|
User-defined communications support allows user-written application programs
|
||
|
|
to call routines to set up and use a communications protocol over a token-ring,
|
||
|
|
Ethernet, or X.25 network.</dd>
|
||
|
|
<dt id="x2042791" class="bold">
|
||
|
|
<a name="x2042791"></a>user-defined data stream (UDDS)</dt>
|
||
|
|
<dd>A data stream in which the user has defined and embedded all device control
|
||
|
|
characters.</dd>
|
||
|
|
<dt id="x2042796" class="bold">
|
||
|
|
<a name="x2042796"></a>user-defined edit code</dt>
|
||
|
|
<dd>A number (5
|
||
|
|
through 9) indicating that editing should be done on a numeric output field
|
||
|
|
according to a pattern predefined to the system program. User-defined edit
|
||
|
|
codes can take the place of edit words, so that repetitive coding of the same
|
||
|
|
edit word is not necessary.</dd>
|
||
|
|
<dt id="x2005613" class="bold">
|
||
|
|
<a name="x2005613"></a>user-defined function (UDF)</dt>
|
||
|
|
<dd>A function
|
||
|
|
that is defined to DB2 by using the CREATE FUNCTION statement and that can
|
||
|
|
be referenced thereafter in SQL statements. A user-defined function can be
|
||
|
|
an external function, or an SQL function. See also <a href="rzaatb.htm#x2000414">built-in function</a>.</dd>
|
||
|
|
<dt id="x2010813" class="bold">
|
||
|
|
<a name="x2010813"></a>user-defined type (UDT)</dt>
|
||
|
|
<dd>A mechanism
|
||
|
|
that can be used to create new data types. A UDT can extend the capabilities
|
||
|
|
of the built-in data types and capture the unique semantics of user data.</dd>
|
||
|
|
<dt id="x2042807" class="bold">
|
||
|
|
<a name="x2042807"></a>user-defined word</dt>
|
||
|
|
<dd>In COBOL, a word,
|
||
|
|
required by a clause or a statement, that must be supplied by the user in
|
||
|
|
a clause or statement.</dd>
|
||
|
|
<dt id="x2042812" class="bold">
|
||
|
|
<a name="x2042812"></a>user domain object</dt>
|
||
|
|
<dd>An object on the
|
||
|
|
system that can be accessed directly by a user state program. The object types
|
||
|
|
that can be either system domain or user domain are: *USRSPC, *USRIDX, *USRQ,
|
||
|
|
*PGM, *SQLPKG. All other object types are system domain. See also <a href="rzaatd.htm#x2021210">domain</a>.</dd>
|
||
|
|
<dt id="x2042817" class="bold">
|
||
|
|
<a name="x2042817"></a>user entry procedure (UEP)</dt>
|
||
|
|
<dd>The entry
|
||
|
|
procedure, written by the application programmer, that is the target of a
|
||
|
|
dynamic program call. This procedure gets control from the program entry procedure
|
||
|
|
(PEP). See also <a href="rzaatp.htm#x2035028">program entry procedure</a>.</dd>
|
||
|
|
<dt id="x2042822" class="bold">
|
||
|
|
<a name="x2042822"></a>user exit</dt>
|
||
|
|
<dd>In Backup Recovery and
|
||
|
|
Media Services, a special operation (*EXIT) available in the control group
|
||
|
|
to permit automatic processing of predefined user routines during control
|
||
|
|
group processing.</dd>
|
||
|
|
<dt id="x2389701" class="bold">
|
||
|
|
<a name="x2389701"></a>user ID</dt>
|
||
|
|
<dd>See <a href="rzaatu.htm#x2042841">user identification</a>.</dd>
|
||
|
|
<dt id="x2294084" class="bold">
|
||
|
|
<a name="x2294084"></a>user ID/address</dt>
|
||
|
|
<dd>The two-part network
|
||
|
|
name used in the system distribution directory and in the office applications
|
||
|
|
to uniquely identify a user and send electronic mail.</dd>
|
||
|
|
<dt id="x2042841" class="bold">
|
||
|
|
<a name="x2042841"></a>user identification (UID, user ID)</dt>
|
||
|
|
<dd>(1) In the UNIX operating system, a string that uniquely identifies each user to
|
||
|
|
the operating system.</dd>
|
||
|
|
<dd>(2) The first part of a two-part network name
|
||
|
|
used in the system distribution directory and in the office applications to
|
||
|
|
uniquely identify a user. The network name is usually the same as the user
|
||
|
|
profile name, but does not need to be. See also <a href="rzaatc.htm#x2017631">common
|
||
|
|
user identification</a>.</dd>
|
||
|
|
<dd>(3) The name used to associate the user profile
|
||
|
|
with a user when a user signs on to a system.</dd>
|
||
|
|
<dt id="x2044316" class="bold">
|
||
|
|
<a name="x2044316"></a>user identification number (uid)</dt>
|
||
|
|
<dd>A 4-byte, unsigned integer (uid) used to identify a user profile. See also <a href="rzaatg.htm#x2024044">group identification number</a>.</dd>
|
||
|
|
<dt id="x2042849" class="bold">
|
||
|
|
<a name="x2042849"></a>user index</dt>
|
||
|
|
<dd>In i5/OS application
|
||
|
|
programming interfaces, an object that provides a specific order for byte
|
||
|
|
data according to the value of the data. User index objects reside in the
|
||
|
|
user domain. The system-recognized identifier for the object type is *USRIDX.</dd>
|
||
|
|
<dt id="x2042854" class="bold">
|
||
|
|
<a name="x2042854"></a>user interface</dt>
|
||
|
|
<dd>The hardware, or software,
|
||
|
|
or both that enables a user to interact with a system, program, or device.</dd>
|
||
|
|
<dt id="x2042859" class="bold">
|
||
|
|
<a name="x2042859"></a>user interface manager (UIM)</dt>
|
||
|
|
<dd>A function
|
||
|
|
of the operating system that provides a consistent user interface by providing
|
||
|
|
comprehensive support for defining and running panels (displays), dialogs,
|
||
|
|
and online help information.</dd>
|
||
|
|
<dt id="x2042864" class="bold">
|
||
|
|
<a name="x2042864"></a>user message queue</dt>
|
||
|
|
<dd>A user-created
|
||
|
|
object used to receive messages sent from the system, other users, and application
|
||
|
|
programs.</dd>
|
||
|
|
<dt id="x2042869" class="bold">
|
||
|
|
<a name="x2042869"></a>user name</dt>
|
||
|
|
<dd>A string of characters
|
||
|
|
that uniquely identifies a user to a system. See also <a href="rzaatu.htm#x2042841">user identification</a>.</dd>
|
||
|
|
<dt id="x2042874" class="bold">
|
||
|
|
<a name="x2042874"></a>user password</dt>
|
||
|
|
<dd>A unique string of
|
||
|
|
characters that a system user enters to identify that user to the system,
|
||
|
|
if the system resources are secured.</dd>
|
||
|
|
<dt id="x2042879" class="bold">
|
||
|
|
<a name="x2042879"></a>user profile</dt>
|
||
|
|
<dd>An object with a unique
|
||
|
|
name that contains the user's password, the list of special authorities assigned
|
||
|
|
to a user, and the objects the user owns. The system-recognized identifier
|
||
|
|
for the object type is *USRPRF.</dd>
|
||
|
|
<dt id="x2042884" class="bold">
|
||
|
|
<a name="x2042884"></a>user profile name</dt>
|
||
|
|
<dd>The name or code
|
||
|
|
that the system associates with a user when the user signs on the system.</dd>
|
||
|
|
<dt id="x2042889" class="bold">
|
||
|
|
<a name="x2042889"></a>user queue</dt>
|
||
|
|
<dd>In i5/OS application
|
||
|
|
programming interfaces, an object consisting of a list of messages that communicate
|
||
|
|
information to other application programs. The system-recognized identifier
|
||
|
|
for the object type is *USRQ.</dd>
|
||
|
|
<dt id="x2042894" class="bold">
|
||
|
|
<a name="x2042894"></a>user registry</dt>
|
||
|
|
<dd>A collection of user
|
||
|
|
information, such as user IDs and passwords, that is used as the basis for
|
||
|
|
security control by a system such as a Web application server.</dd>
|
||
|
|
<dt id="x2042899" class="bold">
|
||
|
|
<a name="x2042899"></a>user shell</dt>
|
||
|
|
<dd>An interactive shell.
|
||
|
|
The user's CICS® application program runs directly under this CICS facility.</dd>
|
||
|
|
<dt id="x2042904" class="bold">
|
||
|
|
<a name="x2042904"></a>user space</dt>
|
||
|
|
<dd>In i5/OS application
|
||
|
|
programming interfaces, an object consisting of a collection of bytes that
|
||
|
|
can be used for storing any user-defined information. The system-recognized
|
||
|
|
identifier for the object type is *USRSPC.</dd>
|
||
|
|
<dt id="x2042909" class="bold">
|
||
|
|
<a name="x2042909"></a>user state program</dt>
|
||
|
|
<dd>A program that
|
||
|
|
can access objects in the user domain. All user programs on the system are
|
||
|
|
user domain. A user state program can call only another user state program.</dd>
|
||
|
|
<dt id="x2005638" class="bold">
|
||
|
|
<a name="x2005638"></a>user table</dt>
|
||
|
|
<dd>A list of user IDs authorized
|
||
|
|
to an iSeries finance job.</dd>
|
||
|
|
<dt id="x2042917" class="bold">
|
||
|
|
<a name="x2042917"></a>USS</dt>
|
||
|
|
<dd>See <a href="rzaatu.htm#x2042481">unformatted
|
||
|
|
system service</a>.</dd></dl>
|
||
|
|
<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
|
||
|
|
</body>
|
||
|
|
</html>
|