Research IBM ReqPro tool (need document listing features and migration strategy)

Hello: I am interested in a **document** that explains similarities between IBM Ratonal Req Pro & Requirmnts Compsr. And I also need you to address following: migrating from **req pro** 2 req compsr (and vice-a-versa) (is it possible? **highlevel view of how to migrate?** **what data will be migrated, what won't be migrated?** **what feature will I gain and what feature will I lose? what migration tools? links to detailed info/tutorials about this**) *and the other way round (migrating from req composer to req pro)* **Total document should be 5 pages or less. **