As software projects evolve, possibly differing in size, complexity, scope, and purpose, the development processes that support the project must evolve to reflect these changes. The Endeavors system is an open, distributed process modeling and execution infrastructure that addresses communication, coordination, and control issues. Endeavors' solution architecture applies five key design strategies: (1) maintaining multiple object model layers, (2) implementing the architecture as a set of highly componentized, lightweight, transportable, concurrent elements, (3) providing customization capabilities for each layer of the object model, (4) using a reflexive object model to support dynamic change, and (5) allowing dynamic loading and changing of objects. Keywords open, distributed process technology, architecture INTRODUCTION Effective software evolution demands that all stakeholders are able to participate in a system's evolution. This requires involvement in evolutionary processes, ...