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not putting anything into their shopping carts. The system has no need to<br />

uniquely identify such users, so all these users can share a common identity,<br />

the generic user, within the system. This member category saves on system<br />

resources.<br />

► Registered users: After registering with the system, a user becomes a<br />

registered user. A registered user has a user ID and password stored in the<br />

user registry. The system may also request profile information from a<br />

registered user. Registered users have their preferences saved, so they may<br />

close their browser sessions and subsequently return to the site and see the<br />

Portal Server displayed with the same preferences and customization as<br />

before.<br />

Member groups<br />

A member group is an arbitrary collection of members, which typically consists of<br />

users who share a common interest or represent assigned roles. It is possible to<br />

use the Manage Groups portlet to create groups.<br />

It is possible to explicitly assign or unassign users and member groups to or from<br />

another member group. Nested member groups are also supported. The user<br />

registry, either LDAP or database depending on the configuration chosen at<br />

installation time, holds member group data. Member Services queries the LDAP<br />

server or database as appropriate when searching for membership within a<br />

member group.<br />

User repository<br />

The user repository refers to the data store that holds the member profile data,<br />

which excludes authentication data, and non-registry groups. A basic user profile<br />

incorporates registration information, address, purchase history, and other<br />

miscellaneous attributes, such as news topics of interest, color preferences and<br />

more. Attributes in the profile can be multi-valued and easily set and retrieved.<br />

For example, an employee member profile may also contain employee number,<br />

job title, and a link to the business organization to which the user belongs. It is<br />

possible to initiate basic find operations based on the attribute values.<br />

Either a database or a directory server usually serves as a user repository.<br />

Custom options can also be defined. Profile data is typically stored in the<br />

WebSphere Portal Server database tables. When LDAP is used as the<br />

repository, the profile data is first stored in the directory server using standard<br />

object classes. Depending on the configuration, profile data that is a superset of<br />

the LDAP object classes may be stored in a database.<br />

Chapter 12. Security features of other Lotus products 569

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