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Subject: AW: [uddi-spec] UDDI Subscription API Optional?
Paul, There are a number of optional features in UDDI V3, the subscription API is only one of them. This decision has been made since we can not expect each and every implementation to support all features. It is certainly arguable which features of UDDI are core, i.e. need to be supported by every UDDI implementation, and which aren't. In this regard, the Replication API is recommended for multi-node registries since it its interoperability is tested and an alternative approach would probably hard to implement. The Subscription API is not seen as a core feature, although many interesting scenarios can be implemented using this API. The fact that this API is optional is merely a conformance criteria for UDDI V3. Still, market forces will decide how many UDDI V3 implementations actually support the Subscription API - independent of its optionality. Claus -----Ursprüngliche Nachricht----- Von: Paul Denning [mailto:pauld@mitre.org] Gesendet: Freitag, 7. Januar 2005 22:01 An: uddi-spec@lists.oasis-open.org Betreff: [uddi-spec] UDDI Subscription API Optional? I noticed in UDDI v3.0.2 [1] (and in 3.0.1 and 3.0) that the Subscription API is OPTIONAL, and the replication API is recommended (SHOULD offer) (with a caveat related to multi-node registries). Within the DoD (my customer), there are a number of organizations that are considering using UDDI, and I expect there will be several independent registries. One approach to federation is to subscribe to each of these registries so I can be notified of changes that interest me. I would have thought that the subscription API would have been at least recommended (SHOULD), and possibly mandatory (MUST). What was the rationale for making it optional? There does not seem to be many implementations of the Replication API; perhaps MAY is more appropriate than SHOULD. [1] http://uddi.org/pubs/uddi-v3.0.2-20041019.htm#_Toc85908033 Paul To unsubscribe from this mailing list (and be removed from the roster of the OASIS TC), go to http://www.oasis-open.org/apps/org/workgroup/uddi-spec/members/leave_workgroup.php.
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