We would like to remind you about the statement we made at the beginning of Chapter 3, Building the Core – Enterprise Business Flows. Yes, OSB (the ESB SOA composite pattern from Oracle) is probably the only pattern you need in your SOA infrastructure. Maybe your business does not need long running asynchronous processes; it also could be that your security requirements are soft, and two core security policies implemented in OSB by default will suffice. A number of service artifacts can be insignificant, and you can survive without Central Repository; however, if your business applications do not need proper exception handling, please check the pulse of your business—maybe it's already dead!

Whatever framework is described in Chapter 1, SOA Ecosystem – Interconnected Principles, Patterns, and Frameworks, will be responsible for your core business operations; exception handling will be an essential part of it. If you, as an enterprise SOA architect (and we assume that you are), are...