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Upon request, generate lists of available services which meet a given set of functional requirements.
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Non-functional requirements such as performance are not usually considered at this stage. However, a subsequent task of service selection may use non-functional requirements to rank the candidate list in order to make a particular service selection.
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Syntactic description focus on the format of messages exchanged between client and provider.
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Semantic descriptions provide information about what the client requires and what the service provides in terms of relationships between inputs and outputs.
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Quality of Service considerations such as performance, reliability, cost etc are essential in making a service selection
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Business Data ontologies describe the data which is exchanged by the services. These may be generic, or specific to a particular industry.
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