Summary

In this chapter you have learned how services can be categorized into a classification. This chapter introduced a classification into elementary services, composite services, and process services by looking at their granularity and the way services can be combined into other services; this is called composition.

In the next chapter, you will learn about the concrete building blocks that are used in SOA landscapes. These among others include business rules, user interfaces, BPM tooling, and Enterprise Service Buses.