Framework services are low level services that may require persistence or not quite considered to be part of the kernel. Exactly what will be included in this service layer has not be determined, but some possiblities include:Entity and Entity Producer
Presence
Id
Digest
Notification
Time
Event
Message
Preferencehave been redefined for Sakai 2.2. Various services are collected into modules that handle general support functions.
Entity Service
User Service
Security Service
Content Service
Site Service