Policy and product-directed process instantiation

There are three essential problems in building software systems [1]: complexity, evolution, and scale. The evolution of large-scale systems is compounded both by the problems of complexity and by the problems of scale. Thus, process models for the evolution of large-scale systems must define approaches to manage the compounding effect of complexity as well as to manage the multiplicative effect of multi-people interaction while dealing with the realities of changing and extending existing systems.. Ideally, we should be able to use the same policies, mechanisms and structures to bound the effects of complexity that we use to support and enforce multi-people coordination and cooperation. Further, these policies, mechanisms and structures should gives us the basis for successfully managing the evolution of these large-scale systems.