I was wondering if anyone might be willing to describe how they handle
migrating code through their various environments.  We have a multi-tiered
setup for our evelopment.  The developers code on their local machines and
then check the code into the devo source tree to be compiled on a central
box for integration testing.  The code is then promoted to a model office
environment where the end users test and give buyoff on the product.  After
it has been approved it is then migrated to production.  What is the best
way to handle this?  This is a large project with about 5 different
developers all working on different areas of the project.  We need to allow
each developer to be able to migrate 1 file at a time through the entire
process if they need to, but if multiple developers have items in the MO
environment and only some are approved for prod we need to be able to only
promote those that are approved.  This is a .Net web app that is all
currently housed in a single solution that has a single project.

Any recommendations would be much appreciated.