Abstract
Organizations expect Web Services to make their information systems
more agile, so they can better adapt to changes in business requirements.
Hence, this technology focuses on interoperability and flexibility
giving developers the ability to customize, reuse and enhance Web
Service functionalities as well as non-functional extensions such
as security, transactions and reliable messaging.
This paper describes the core mechanisms necessary to build Web Services
extensions, regardless of the underlying platform. This contribution
is based on the results of a comprehensive evaluation of existing
implementations.
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