Contemporary SOA promotes loose coupling throughout the enterprise

Contemporary SOA promotes loose coupling throughout the enterprise

As we've established, a core benefit to building a technical architecture with loosely coupled services is the resulting independence of service logic. Services only require an awareness of each other, allowing them to evolve independently.

Now, let's take a step back and look at the enterprise as a whole. Within an organization where service-orientation principles are applied to both business modeling and technical design, the concept of loose coupling is amplified.

By implementing standardized service abstraction layers, a loosely coupled relationship also can be achieved between the business and application technology domains of an enterprise (Figure 3.15). Each end only requires an awareness of the other, therefore allowing each domain to evolve more independently. The result is an environment that can better accommodate business and technology- related changea quality known as organizational agility.
Figure 3.15. Through the implementation of service layers that abstract business and application logic, the loose coupling paradigm can be applied to the enterprise as a whole.