[RECOMMENDED, many]

Technical Definition:

An overview of the behaviours exposed by the Service Genre, i.e., what the functionality is that can be used by applications or service implementations. Each behaviour or request should include sufficient technical information to specialise the Service Genre to one or more Service Expressions. The information may include:

• a name for the behaviour or request
• the classifications (e.g., transactional)
• form and format of the message or request (including data models, document descriptions)
• responses (normal and abnormal)
• pre-conditions
• post-conditions
• side effects and state changes (including algorithms)
• a description of the functionality and operations provided

Commentary:

A summary of the functions that can be used by applications or implementations. The information for specialising the Service Genre into one or more Service Expressions may include: name of the behaviour or request; classification; function and operation provided; format of message or request; normal and abnormal responses; pre- and post-conditions; algorithms, changes in state and side effects.