Web 2.0 Architectures

The Service-Oriented Architecture Pattern

Also Known As

Other terms you may see in conjunction with the Service-Oriented Architecture pattern include:

Services Oriented Architecture

The extra s, often used by nontechnical users, doesn’t change the meaning.

Services

Developers who work outside of the enterprise development world often just think of SOA as “services,” building them into individual applications without worrying about the connecting architecture between applications. The lessons of SOA, especially those of opacity, still apply even in simpler contexts.

Event-Driven Architecture (EDA)

All SOAs are, by design, event-driven; however, a series of new architectures are emerging that actually take note of the events, and even add the concept of event causality (the relationship between two or more events). The pattern of Event-Driven Architecture, defined by the analyst firm Gartner,^[70] is the most prominent of these.

Event-Driven Architecture

When your friend calls you to invite you to her wedding and you accept and update your calendar, this is an example of a traditional one-iteration interactive SOA. When she posts an announcement of her wedding in the newspaper and you read the announcement and cross her off your list of single female friends, this is a simple example of event processing.

Event-Driven Architecture is a style of software architecture that is built around the model of event processing; that is, a model in which the movement of information is facilitated by the ...