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Subject: Definition(s) of "service"
As part of the closing remarks of the F2F, I read some of the attempts to capture a satisfactory definition of "service". For info, here they are: "A service is an action boundary between a resource and a consumer of the resource. It is characterized by a well-defined interface that permits the consumer to access the functionality provided by the resource without requiring knowledge of the implementation of the resource or the service that enables the access." - we rejected this on the basis that this was a better fit to the concept of "service interface"; "A behavior or set of behaviors offered by one entity for use by another according to a policy and in line with a service description." - reservations about the qualifiers introducing policy and service description; "The use by one entity of a resource made available by another entity" and "A service provides a resource or set ot resources to accomplish a task required by another entity" - reservations about the use of the term "resource", could be misunderstood in IT circles (== "anything that has identity"); "A service is the capability to accomplish a task on behalf of another entity." - reservation over use of expression "on behalf of", implying agent and proxy; A couple of other formulations could be: "A service is the capability to accomplish a task required by another entity." or "A service is a behaviour made available by one entity for use by another." Peter F Brown Chair, CEN eGovernment Focus Group ICT-Strategy Unit Austrian Federal Chancellery
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