Understanding the Service Applications Architecture
The concept of shared services was introduced in SharePoint Portal Server 2003 in the form of portals. Portals can be considered site collections that offered services such as federated search, a single user profile store for caching details of the user, audiences, and My Sites. This concept was further enhanced in SharePoint 2007 in the form of shared services providers or SSPs. SSP organized all the services under a single service provider. SSPs were created in their own web applications with the required services configured in them to which other web applications would then subscribe. SSPs had two main disadvantages:
• Individual services could not vary in their configuration based on the ...
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