A web service is a set of applications that standardize communication of of information across systems, business partners, and customers
They provide a standard means of interoperating between different software applications, running on a variety of platforms and/or frameworks
They can then be combined in a loosely coupled way in order to achieve complex operations
Programs providing simple services can interact with each other to deliver sophisticated added-value service
W3C. (2004). Web Services. http://www.w3.org/2002/ws/Activity
II. What are web services?
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