I'm trying to understand the seamspace Drools rules and I'm not sure where some of the items are being put into WorkingMemory.  Specifically Member and MemberAccount.

For example

rule CreateFriendRequest
  no-loop
  activation-group "permissions"
when
  acct: MemberAccount()
  member: Member() //friends not contains acct.member)
  check: PermissionCheck(target == member, action == "createFriendRequest", granted == false)
then
  check.grant();
end

Where are these being added into WorkingMemory?  Also why is there an activation-group?  AFAICT Seam isn't making use of the activation groups with it uses Drools.  Thanks!