I'm looking for a work flow diagram or something of that nature that shows how all of the Level 2 and Level 3 Process areas and associated work products flow together. I'm talking about some sort of diagram or chart that shows a regular waterfall development lifecycle found in a software environment and where each Process area, and it's work products fit into that scenario.
Since the CMMI is a set of guidelines for process improvement, there is no single way of tying everything together. It is highly dependent on how you have implemented the model in your organization. Have you taken the SEI’s Intro to CMMI 3-day class? If so, then you have seen diagrams that sort of address your request. These diagrams also appear in Chapter 4 of the CMMI book. There is a whole series of these diagrams that illustrate how the Process Areas (PAs) are interconnected and the types of information that flow between the PAs. These figures only show possible interactions between the PAs and are not the only way to do things.