I am Akram Hossain.
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I am a deadline-driven and highly self-motivated writer and editor. I have am a former teacher in Computer Science and Engineering.
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A Service Description plays an important role in enabling access to a service. Most service description languages are designed for machine consumption, allowing for the automatic creation of code skeletons, easier search, and classification of services. However, people may also find descriptions useful to learn about the use of parameters or the precise semantics of some operation. Data description
There are several aspects in data description like the definition of the data structure, of the type and values, its semantic etcÂ¿
For XML, XML Schema provide structural, type and values descriptions; For Web Services, WSDL provides, via the use of XML Schema, the data formats flowing in and out; SAWSDL provides a way to add semantic descriptions to XML Schema and WDSL descriptions.
Web Services description
WSDL defines not only the format and values of data flowing in and out of the service, but also define the endpoints, supported operations, message exchange patterns (MEP), everything relative to the operative description of the Web Services endpoints.
WS- Choreography describe the flow of messages between a set of services participating in a global choreography of exchanges, without having a controller. It can also be used to validate a posteriori a serie of logged exchanges between different parties.
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