Rational Performance Tester通过允许您添加更多的用户组以及指派用户的绝对值数量或者百分点数量，从而无缝的掌控缩放比例。
Figure 20 shows how easily you can break down the workload and assignments to different user groups, with each group carrying different virtual users. For example, to add a new group图20中显示了您能够轻易的分解工作量，并且指派到不同的用户组，使得每一个组负责不同的虚拟用户。
In the authorization and authentication areas of the client, you can add, modify, or delete users, user groups, privilege sets, and ACLs.在该客户机的authorization and authentication areas中，可以添加、修改或删除用户、用户组、权限集和acl。
