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<meta name="abstract" content="Use this information to learn about creating a group registry definition in an EIM domain that describes and represent a group of registry definitions." />
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<h1 class="topictitle1">Group registry definitions</h1>
<div><p>Use this information to learn about creating a group registry definition
in an EIM domain that describes and represent a group of registry definitions. </p>
<p>Logically grouping the registry definitions allows you to reduce the amount
of work that you must perform to configure EIM mapping. You can manage a group
registry definition similarly to the way that you manage an individual registry
definition.</p>
<p>All members of the group registry definition typically contain at least
one common user identity to which you want to create a target or source association.
By grouping members together you are able to create only one association,
rather than multiple associations, to the group registry definition and user
identity.</p>
<p>For example, John Day logs on to his primary system with a user identity
of <samp class="codeph">jday</samp> and uses the same user identity, <samp class="codeph">JOHND</samp>,
on multiple systems. Therefore, the user registry for each system contains
the <samp class="codeph">JOHND</samp> user identity. Typically, John Day creates a separate
target association from the John Day EIM identifier to each of the individual
user registries that contain the <samp class="codeph">JOHND</samp> user identity. To
reduce the amount of work that he must perform to configure EIM mapping, he
can create one group registry definition with all the user registries that
hold the <samp class="codeph">JOHND</samp> user identity as members of the group. He
is then able to create a single target association from the <samp class="codeph">John Day </samp>EIM
identifier to the group registry definition rather than multiple target associations
from the John Day EIM identifier to each of the individual registry definitions.
This single target association to the group registry definition allows John
Day's user identity of <samp class="codeph">jday</samp> to map to the <samp class="codeph">JOHND</samp> user
identity.</p>
<p>Read the following information about group registry definitions: </p>
<ul><li>All of the members (individual registry definitions) of the group registry
definition must have the same case sensitivity. </li>
<li>All of the members (individual registry definitions) of the group registry
definition must be defined in the EIM domain before you can add them to a
group registry definition. </li>
<li>A registry definition can be a member of more than one group, but you
should avoid specifying an individual user registry as a member of multiple
group registry definitions because lookup operation might return <a href="rzalvambiguousgroupregistry.htm">ambiguous
results</a>. The group registry definition cannot be a member
of another group registry definition. </li>
</ul>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalveserverregistry.htm" title="This information explains how you can create a registry definition to hold all your user registries for a system.">EIM registry definitions</a></div>
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