Chapter 4. Implementing Variable Services

The circumstances of the world are so variable that an irrevocable purpose or opinion is almost synonymous with a foolish one.

William Shakespeare

Patterns of Service Variability Implementations

Implementing services variability is essential to limit the impact of changes in chains of consumers and providers of services. Understanding why we need to focus on variability is just as important, especially since in the initial intention of Web Services as defined by W3C (and included in the following W3C Web Services Activity Statement), nothing seems to limit flexibility.

Web services provide a standard means of interoperating between different software applications, running on a variety of platforms and/or ...

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