Just to clarify a point in this thread: > > > > > Clearly Apex (and other compilers) rely on a 'project' based > > > approach with sources being 'registered' to provide this > > > functionality. Apex does not use a project mechanism. If the compiler sees a with clause, it knows what the file name must be, and then searches the imported subsystems/views for it. There is no need to register files, or have project mechanims etc. So long as the source code files are named correctly and are located in a subsystem/view the compiler will find them. This is why Apex can perform it's automated builds. The intermediate form of the program is stored and then used to: perform browsing, support ASIS, be reused in the next compilation to support incremental compilation. The intermediate form is also updated by the editor when performing source code formatting or semantic checks. Greg ------------------------------------------- Greg Bek mailto:[log in to unmask] Product Manager Rational Software, Cupertino CA 95014 Ph: +1 408 863 4394 Fax: + 1 408 863 4180 -------------------------------------------