Common use of Resources and Properties Clause in Contracts

Resources and Properties. The CSEngine is a stateful web service. Each running CSEngine service provides a WSRF resource for process instances it is involved in. The purpose of these resources is to allow for the monitoring (cf. Section 8.4.11) of the execution of a process, as the execution proceeds, for the coordination of process joins (where parts of the process might be executed on different nodes of the infrastructure and need to “agree” on the node where the process join takes place), and for retrieving the result of a process which was run asynchronously. All resource properties that are available for the process instance have a dynamic QName (based on the process instance ID, and possibly information on which step in the