ABSTRACT
We seek to build, in our IPPTs, a series of subsystems, not unlike those of the product system we intend to develop. Our product system will include subsystems that must interface (communicate) with other subsystems to exchange information, and the components of each subsystem must interact in the same fashion. We seek to weld the humans working on the IPPTs into a temporary system as well. The second most important point in the book is that there should be a strong correlation between the product system composed of entities and the program system composed of IPPTs.
