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Subject: Re: [entity-resolution] draft blurb for the vote [was: minutes frommeeting 20050823]
Minor word smithing and I incorporated Tony and Jirka's edits: XML documents and data often reference other external resources. Often the referencing information is not sufficient to unambiguously locate the desired resource, or the resource is not accessible at the given location at the time it is required, or it is preferable that an alternate resource be used in place of the referenced resource. For example: 1. External identifiers may require resources that are not always available. For example, a system identifier that points to a resource on another machine may be inaccessible if a network connection is not available. 2. External identifiers may require protocols that are not accessible to all of the tools on a single computer system. An external identifier that is addressed with the ftp: protocol, for example, is not accessible to a tool that does not support that protocol. 3. It is often convenient to access resources using system identifiers that point to local resources. Exchanging documents that refer to local resources with other systems is problematic at best and impossible at worst. 4. Incoming XML documents may reference customized versions of standard XML schemas. To protect your systems, it is necessary to remap the schema references so that known, trusted copies of the schemas are used. Entity Resolution is the process by which these resource references can be mapped to another version of the reference that can be found or that is preferred for other reasons. To address these issues, the OASIS XML Catalog specification defines an application-independent entity catalog that maps external identifiers and URI references to (other) URI references. Entity resolution catalogs have already been widely implemented in much deployed software. Promoting the OASIS XML Catalog specification to an OASIS Standard is crucial for continued interoperability of XML applications.
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