There is one more feature in MDT that is worth to mention here in this topic.
It is very common sitiuation when image files are built on separate server with use of source codes stored on that server. Developers working with those images may have not access to original source codes and they may use copies available in different locations.
In MDT it is possible to map paths indexed by Method Finder during image build to other paths currently available. Thus this it is possible to overcome source code paths incompatibilities. More information about this feature may found in MDT help