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The related buzzword service-orientation promotes is loose coupling between services. Further users can also access these independent services without any knowledge of their internal implementation. A service presents a simple interface to the requester that abstracts away the underlying complexity acting as a black box. Service-oriented architecture aims to allow users to combine large chunks of functionality to form applications which are built purely from existing services and combining them in an ad hoc manner. This metadata describes both the functional characteristics of the service and quality-of-service characteristics. In SOA, services use protocols that describe how they pass and parse messages using description metadata.

8.5 Service-oriented architectures for interactive applications.

An API can be thought of as the service, and the SOA the architecture that allows the service to operate. SOA is related to the idea of an application programming interface (API), an interface or communication protocol between different parts of a computer program intended to simplify the implementation and maintenance of software. It is enabled by technologies and standards that facilitate components' communication and cooperation over a network, especially over an IP network. Service-oriented architecture integrates distributed, separately maintained and deployed software components.

ĭifferent services can be used in conjunction as a service mesh to provide the functionality of a large software application, a principle SOA shares with modular programming. It is a black box for its consumers, meaning the consumer does not have to be aware of the service's inner workings.It logically represents a repeatable business activity with a specified outcome.

Ī service has four properties according to one of many definitions of SOA:

Service orientation is a way of thinking in terms of services and service-based development and the outcomes of services. SOA is also intended to be independent of vendors, products and technologies. A service is a discrete unit of functionality that can be accessed remotely and acted upon and updated independently, such as retrieving a credit card statement online. By consequence, it is as well applied in the field of software design where services are provided to the other components by application components, through a communication protocol over a network. In software engineering, service-oriented architecture ( SOA) is an architectural style that supports service orientation.