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Subject: More on Finance Sub-group comments - the Image/Picture Aggregate
Re: the ebXML CC Finance Sub-group's comments on the Aggregate Analysis document provided by Marianne Cockle, at line 397 - the Image/Picture Aggregate, in CCAnalysis_7_12-00_finance_comments.xls, at http://lists.ebxml.org/archives/ebxml-core/200101/msg00026.html. The Image/Picture Aggregate proposed by Finance includes three components: (1) the Format - the electronic format of the image (e.g. jpg, pdf.,…), (2) an Identifier - The name or alpha-numeric string which identifies the image, and (3) the Image - the data which makes up the image. The intent is clear - in that business documents will have all sorts of reasons to refer to images or other supporting documents in the form of jpegs, Adobe Acrobat pdf files, Word documents, etc. But I would suggest not including the actual image or document within the business document itself. Instead, an *external* reference can be made to another MIME body part within the ebXML TR&P MS payload using a "cid" URL, described in the Content-ID and Message-ID Uniform Resource Locators; see RFC 2392 at http://www.ietf.org/rfc/rfc2392.txt. For example, a JPEG picture image would be "attached" to the MIME payload envelope, and indirectly referred to by the business document using the URL string "cid:firstname.lastname@example.org": --Boundary_(ID_rZCQj0ia1UzTFR4Q7NJaBg) Content-ID: <email@example.com> Content-type: image/jpeg; name=DSCN3385.JPG Content-transfer-encoding: BASE64 This is consistent with the way TR&P refers to external MIME parts, where Section 8.3 - Manifest element - within the ebXML Transport, Routing & Packaging Message Service Specification (Version 0.91), at http://lists.ebxml.org/archives/ebxml-transport/200101/msg00010.html, shows use of XLINK to refer to external documents. William J. Kammerer FORESIGHT Corp. 4950 Blazer Memorial Pkwy. Dublin, OH USA 43017-3305 +1 614 791-1600 Visit FORESIGHT Corp. at http://www.foresightcorp.com/ "Commerce for a New World"
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