Identifying model changes when reverse engineering

[MattAdamson]

This partly relates to my previous post on tracking and generating documentation for model changes.

http://www.sparxsystems.com.au/cgi-bin/yabb/YaBB.pl?board=general;action=display;num=1159858777

For some new designs we need to reverse engineer a few classes and make modifications to them. A few of the developers will need to do this for different classes at the same time.

To track their changes I assume the only way to do this effectively would be

a) Get them to reverse engineer the existing source code first.
b) Check in the model at that point into source control
c) Check out and make the actual changes to the model.
d) Use the compare utility to track the changes they made.

Any thoughts?