Why is WebSphere Application Server used with Sametime?
WAS provides Sametime 8.5.2 with the application server base to allow Sametime to be customized in many ways. WAS provides scaling, multiple deployment models, consolidated system management, consolidated security, network management, and clustering that was not as robust in previous versions of Sametime. Once you understand the basic concepts described in the following section, you will be better prepared to set up the proper Sametime server configuration that best fits your own environment.