Concurrent workflow

System

Hi All :

In a workflow that our clients want us to build, we are required to send a DCR to multiple content contributors simultaneously. Each one of those contributors may make changes to the DCR and then submit for approvals to may be multiple people.

How do I code for something like this?? How will TS merge all the changes that different people have made to the original DCR.??

Also is there a way where TS can provide functionality like MS Word where a user can TRACK CHANGES made to a DCR while the DCR is in a workflow. What the user wants to do is visually see all that has happened to a DCR while it has gone thorugh edits at multiple stages.

Thanks

Ashish