Operational Flow for Objects and Source

The following diagram shows a system for using libraries for development:

Note: The contents of each of the libraries shown in the diagram are explained below.

Strict rules should be applied to how source and objects may be moved between libraries:

Objects, together with their source, should only be moved along the routes shown by arrows.
If an existing object needs to be changed, its source should be copied up to the development library, after checking that there is no outstanding version already undergoing amendment, and recompiled there.
It may be appropriate to have more than one development library. You must coordinate the libraries to ensure that no component is undergoing modification in more than one library at a time.