Documentum bits...

* Role and a Group: A Role is a special kind of group which can be used for applications. Where as a group can only be used for objects. Consumer, contributor, co-ordinator are the roles applied by Webtop as a client capability.

* DQL Queries:
To get the document from a particular folder...
select * from dm_document where FOLDER('pravar')

To query for a repeating attribute...
select * from dm_document where any (r_attr = 'hello');

To get all the versions of a document...
select * from dm_document(ALL)

* Workflow components:
Activity Instances
Workitems
packages

* There are two types of ACLs: user ACL and system ACLs. ACLs can be created with desktop client.