- currently, we have custom peer review record types in
CQ that allow reviewer to review design documents. How can I do that
in the Jazz interface? Do I need to synchronize those record types as
Jazz workitem? Even then, I am not sure how Jazz and CQ connector
synchronize the workflow state?

I'm assuming you created something like a Review record type in CQ, with a workflow that transitions through states like "Needs Review" -> "Review in Progress" -> "Review Completed". If so, then you can do a similar thing in Jazz - create a custom work item type and a work flow to go with it. For the basic idea, see the "Work Item Customization" section in the jazz.net article

https://jazz.net/learn/LearnItem.jsp?href=content/docs/work-items/index.html

And assuming that you can define substantially the same type of review work item and work flow in Jazz, you'll be able to connect them to the CQ records that you use for reviews. Work flow states are synchronized like any other property, by defining a mapping between the CQ and Jazz values. However, you'll have to wait for the M5 milestone in order to do that, which is when we're planning on having support for custom work item types and work flows.

John