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Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. Abstract:Publish/subscribe infrastructures, specifically event notification services, are used as the basic communication and integration framework in many application domains. The majority of these services, however, provide poor or no extension mechanisms as well as insufficient configuration capabilities. As a consequence, different event notification servers have been developed previously to support the requirements from different application domains, resulting in implementations that are almost always incompatible with one another. These systems lack mechanisms that allow their use in multiple hardware and software platform configurations, and the flexibility to support different application domains, which have requirements in constant evolution. The YANCEES (Yet ANother Configurable Extensible Event Service) framework was designed to address these versatility issues, relying on a pluggable architecture. We demonstrate our approach, showing how the YANCEES framework can be used in the implementation of different services to attend the demands of many application domains.