I very much like the table which is now in chapter 1, as it provides a very clear and to the point overview. However, having it in chapter 1 already it sort of "drops out of the air" without any context of the purpose and intent of DIIP. Furthermore it is a 'content' part of the specification where all other parts of chapter 1 are about process.
Given the above I would propose to have the table as section 4.1 "DIIP at a glance" or something like that