IBM have released a spec for a language that describes how web services may be composed.

Unfortunately, the specification is only available as a PDF -- evidently browser-accessible specifications are not a service that IBM want to make available via the Web.

According to their announcement, WSFL describes composition of web services:

Composition comes in two types: The first type allows to specify the logic of a business process; the second type allows to define the mutual exploitation of Web services of participants in a business process. A brief concepts of composition sketch is provided in an introductory chapter of the document. A detailed discussion of the metamodel behind composition follows. The language proper is described and illustrated by code snippets, followed by an XML schema of the language.

Related links:

• More IBM web services white papers