The architecture

Abstract

The YAWL System is structured as a service-oriented architecture. It is composed of an extensible set of YAWL Services (see, for example Chaps. 10-12), each of which is deployed at a certain endpoint and offers one or multiple interfaces. Some of these services are user-facing, meaning that they offer interfaces to end users, while others offer interfaces to applications or other services. Among the different styles of service-oriented architectures, the YAWL System adopts the Representational State Transfer (REST) style. In line with the principles of REST (or RESTful) architectures, YAWL services provide access to resources, each with a Unique Resource Identifier (URI). For example, each w..