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Subject: words from today's telecon
Danny, Following up on today's actions. Words I had scribbled down were on service visibility: Achieving SOA visibility requires - description creation and maintenance, - putting description in place where others can become aware of it, - mechanism to establish awareness of description (e.g. registry, known cataloguing Web page, vendor I get all my services from, ...) - mechanism to establish willingness of participants and availability of described service. Also, something I wrote for another purpose to decipher the registry/repository difference 1.1 A Registry or a Repository?While the terms are often used interchangeably, the difference is important when looking at the functions provided by UDDI and ebXML. Unfortunately, the formal definitions are less than clear. As described in the ebXML Registry Information Model specification [5], an ebXML Registry comprises both a registry and a repository where:
To illustrate these concepts consider this familiar metaphor:
To summarize, ebXML Registry stores any type of content as Repository Items in a repository and stores standardized metadata describing the content as Registry Objects in a registry. ------------------------------------------------------------------------------------------ Ken Laskey MITRE Corporation, M/S H305 phone: 703-983-7934 7515 Colshire Drive fax: 703-983-1379 McLean VA 22102-7508 |
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