Have you ever wondered what makes for good SOA style services? Well, wonder
no more. Good services must be:
Reusable Contract based Composable Abstract Autonomous Extensible
Discoverable Stateless Distributed Manageable
You've most likely yawned over such lists before, and this exposition will
probably be no different. However, in case you're wondering what I think
about such things, read on. Be warned, there are no pictures...
A service is said to be reusable if it can be used in more than one context,
even in contexts for which it wasn't originally designed.
How do we achieve this noble goal?
1. Business Domain Modeling
If you understand your business domain, and model services according to that
domain, your services stand a better chance of being reused than if they were
built in isolation according to localized requirements. In other words,
business proce... (more)
Service-oriented architecture (SOA) proposes a model of software as a
distributed network of cooperating services, in contrast to the traditional,
more monolithic application model. Operationally managing such applications
requires a sophisticated management organisation and operating framework that
are capable of defining and sustaining service levels to customers across the
ITIL is the widely adopted framework for service management, defined as the
management of an IT infrastructure of hardware, software, communications
equipment and facilities, documentation, and ... (more)