Viewing an enterprise, system, or building block in terms of services provided and consumed.

An architectural style that supports service orientation.

The business process for applications is supported by a service oriented application landscape.
There is a logical service for getting a list of applicants and a list of job requests.
The applicants are introduced via a webform interface. The application component used here is beaufort a COTS HR system

Create a service oriented model for system integration
Use services and interfaces to demonstrate how the components interact
Model how the HR system and the Webform system exchange information
Create an ArchiMate diagram of this service orientation