Examples where 4-step PCAM (Foster's Methodology) is applied to parallel algorithm design?

Foster's metholodogy has 4 steps to designing parallel algorithms

• Partitioning

• Communication

• Agglomeration

• Mapping

Many examples I'm coming across take a very mathematical approach. While I can understand that math is essential, I was wondering if there was an easier way of explanation the PCAM method to someone who isn't computer science oriented?