Subject: RE: [uddi-dev] ebXML registry and UDDI comparisons
I personally do not see any new ebXML registries coming or a compelling reason for them to come. The only viable ebXML Registry implementations I know of (Infravio  and Sun ) support both ebXML and UDDI, which I take as a consumer empowerment sales tactic. In my admittedly biased view, the momentum is certainly on the UDDI side with all SOA-enabling infrastructure (message/protocol intermediation brokers, development and management tools) shipping with built-in support for UDDI only. Because registry is not so much a feature of an architecture as it is its platform supporting specific capabilities, its value is proportional to the number of systems that leverage it. There simply isn't enough of a market opportunity or a viable go-to-market strategy for an alternative universal registry standard at this time.
Although SOA transformation is what drives a lot of infrastructure spending these days, I do believe that ebXML Registry has a defensible niche in B2B collaboration in specific verticals. Whether there is enough of a vendor ecosystem and innovation around ebXML to sustain it is another matter.
Somewhat tangential to your inquiry, I may note that if you are accessing the registry from within a Java platform, you may use JAXR (Java API for XML Registries), which is designed to support both ebXML and UDDI information models and API's through a common client interface. However it is unlikely that you will be able to run the same code against both ebXML and UDDI registries without change.
From: Jørgen Thyme [mailto:email@example.com]
Sent: Wednesday, June 22, 2005 4:54 PM
Subject: [uddi-dev] ebXML registry and UDDI comparisons
I have looked at the specs for v3 for the ebXML registry. Although the information model looks more detailed than in UDDI my immediate thinking was that adding my taxonomies in UDDI I can achieve a lot. And there are several implementations of UDDI.
What are your thoughts? Will vendors of UDDI registries add ebXML registry functionality to their existing products? Or will there be a complete new set of registry products coming?
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