Updated from openstack-manuals

Change-Id: I725e9601ed48b9ef80c0cf07e4522f449d72a27d

doc/glossary/glossary-terms.xml

@@ -2801,8 +2801,9 @@
         </indexterm>
 
       <glossdef>
-        <para>In the Identity service, provides isolation between projects
-          and users.</para>
+        <para>An Identity API v3 entity. Represents a collection of
+        projects, groups and users that defines administrative boundaries for
+        managing OpenStack Identity entities.</para>
         <para>On the Internet, separates a website from other sites. Often,
           the domain name has two or more parts that are separated by dots.
           For example, yahoo.com, usa.gov, harvard.edu, or
@@ -3824,6 +3825,18 @@
       </glossdef>
     </glossentry>
 
+    <glossentry>
+      <glossterm>Group</glossterm>
+      <indexterm class="singular">
+          <primary>Group</primary>
+        </indexterm>
+
+      <glossdef>
+        <para>An Identity v3 API entity. Represents a collection of users that is
+        owned by a specific domain.</para>
+      </glossdef>
+    </glossentry>
+
     <glossentry>
       <glossterm>guest OS</glossterm>
       <indexterm class="singular">
@@ -6688,8 +6701,9 @@
         </indexterm>
 
       <glossdef>
-        <para>A logical grouping of users within Compute; defines quotas and
-        access to VM <phrase role="keep-together">images</phrase>.</para>
+        <para>Projects represent the base unit of “ownership” in OpenStack,
+        in that all resources in OpenStack should be owned by a specific project.
+        In OpenStack Identity, a project must be owned by a specific domain.</para>
       </glossdef>
     </glossentry>
 
@@ -8699,9 +8713,9 @@
         </indexterm>
 
       <glossdef>
-        <para>In Identity, each user is associated with one or more
-        tenants, and in Compute can be associated with roles, projects, or
-        both.</para>
+        <para>In OpenStack Identity,  entities represent individual API
+        consumers and are owned by a specific domain. In OpenStack Compute,
+        a user can be associated with roles, projects, or both.</para>
       </glossdef>
     </glossentry>