Moving beyond UDDI: is it time to consider ebXML?

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New Registry spec not needed....

Last year we experimented with UDDI as a registry technology and found it lacking when one moved to non-trivial service discovery scenarios. As one Boeing engineer in our community-of-interest put it when introducing a UDDI presentation slide "Ok, so UDDI is notoriously difficult to search....". It is true that with enough creativity and implementation effort, one can generally implement a UDDI-based solution to a given problem, but in general it seems as though the power of the underlying relational database is made somewhat inaccessible, sometimes requiring numerous client queries coupled with client-side logic to accomplish a given task rather than allowing the database to do the work. This doesn't scale particularly well to large sensor/data provider networks, IMHO.

By adopting ebXML and its more flexible and powerful data model, we are finding it much more straightfoward to implement complex service queries like 'find all sensors in a network that implement service interfaces A, B, and C'. There is also a candidate ebXML registry profile that can be used to register and query services and sensors using Semantic Web concepts - something that is on our sponsor's roadmap.


It is not at all clear to me why an additional registry spec would be needed when ebXML meets most of the requirements today. I agree with Anne Thomas Manes assessment that a separate IBM registry spec at this point would unnecessarily fragment the registry domain. I think if IBM focused more on enhancing the ebXML spec where needed, and providing a commercial implementation with IBM value-added, that would be of the most benefit to the SOA community.

Posted by: olivern   Posted on: 05/07/07 You are currently: a Guest | Members login | Terms of Use

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