Hi Manzoor,

Your description is a bit fuzzy, but you *may* want to consider inter-module communication (IMC).  It is a series of interfaces that implement the observer pattern in a limited fashion between modules.

You might be better served, however, by elaborating a bit on exactly what you're trying to accomplish with some additional specifics.  Many, many developers seem to misunderstand the limitations associated with IMC and quickly run into a dead end when it is not able to fully solve all of their implementation details.

Hope this helps!

Brandon