Service

A service is a discrete unit of functionality that can be accessed remotely and acted upon and updated independently.

A service has 4 properties according to Service-Oriented Architecture (SOA): 1. It logically represents a repeatable business activity with a specified outcome. 2. It is self-contained. 3. It is a [[block box]] for consumers, meaning the consumer does not have to be aware of the service's inner workings. 4. It may be composed of other services.