Most organizations are not able to meet the challenges of service orientation with a “clean slate” – they do not change overnight. In part 2, we therefore provide an approach to business architecture (BA) that is based on evolution of best practices and in tune with the need to provide useful business process improvements quickly. We develop an example that continues through the remainder of the book and that illustrates integration of the BA with both SOA and SOM. The main focus is on the following aspects of the BA:

• business process models

• service policy

• domain and service models.

Chapter 4 provides foundation concepts for understanding services in the business context. In particular, we provide a service-oriented business process redesign pattern, and discuss how sourcing and usage strategy influences our approach to redesigning processes.

Chapter 5 focuses on the business process model. We provide a simple example of tactical first steps in moving toward service orientation based on incremental business process redesign given an existing legacy portfolio. We also consider the concept of service-oriented viewpoints in more detail, and show how to apply it to achieve a better business process redesign.

Chapter 6 discusses service policy, domain models, and service models. We address the longer-term, strategic view of identifying and designing services. In particular, our focus is on exploring how services can be used in different business contexts. We wrap things up by discussing the key aspect of surveying and cataloging services as corporate assets.