What is a Project Interface Map?
Project interface maps provide a powerful way to understand how work is actually done, both internally and externally to the project, as well as how one project is related to another. A project interface map uses data to provide management with empirical information on the real structure and relationships of project teams, between project teams and between projects themselves. The data shows whether a relationship between two or more nodes exists, and the value of that relationship. The data can be weighted or have attributes associated with it. The results are then displayed graphically or in tabular format.
This is another presentation on 
