Modular Structure/Modularization?

I need an explanation of how this is done.

I need to make structure diagrams but im unsure on what information needs to be included.

So if anyone could explain or give me a link that'd be great


Cheers

(Unsure if this is the correct place to post)

What is your definition of a Structure Diagram (hardware or Software).

Some people see a Software Structue Diagram in a few ways, depending on the methodology being used.

If your looking at Class's and their interaction with each other using OO techniques, then you need to look at something like Rational Rose Notation. If your being more Abstract and using a Legacy based approach, then you probably want to follow SSADM or LSDM methodology.