Subject: RE: XML and ASP From: "Vun Kannon, David" <dvunkannon@xxxxxxxx> Date: Tue, 18 May 1999 17:25:06 -0400 |
We have found no difficulty in pursuing the implementation of large (three tier) applications, which use XML vocabularies for message passing throughout, without recourse to applications doing the equivalent of theXML = "<tag>" + myContent + "</tag>" Every XML document is built via the DOM API or a stylesheet. We do use XML texts during use case definition as a way of establishing a "service level agreement" between the developers of the different tiers. Both development teams sign off on "request.xml will elicit response.xml" with explicit examples. This decouples the teams, allowing them to work independently, secure in the knowledge that they need only produce the agreed upon structures. Cheers, David vun Kannon Manager, Financial Services Consulting KPMG LLP > -----Original Message----- > From: Michael.Orr@xxxxxxxxxxxxxxxxxxxxxxx > [SMTP:Michael.Orr@xxxxxxxxxxxxxxxxxxxxxxx] > Sent: Friday, May 14, 1999 4:21 PM > To: xsl-list@xxxxxxxxxxxxxxxx > Subject: RE: XML and ASP > > > -----Original Message----- > > From: Vun Kannon, David [mailto:dvunkannon@xxxxxxxx] > > Subject: RE: XML and ASP > > > > I think that both XML to the browser and XML to a file should be > > handled the same way, build the XML with DOM API calls. When > > the document is > > finished, serialise to the string representation and write > > that in one call. > > One of the global messages of XML is the separation of > > structure and > > presentation. Within the XML development community, we have > > to remember that > > the application of that rule to XML itself is that the > > structure is really > > this abstract tree (grove) of nodes. We should operate on > > that abstract > > structure via an API or stylesheet. We should avoid operating on the > > _presentation_ of that structure as a serialised string. > > This is an important and, in my opinion, well-founded position. However: > it's premature to approach development this way today, is it not? > > The XML specification, which defines a text-based markup language, is the > only available basis for portable and evolvable implementation. > Considering > a markup text to be a serialization of a more fundamental information > structure is for now purely hypothetical, as reflected pragmatically in > the > fact that current DOM implementations don't conform to a standardized node > and property structure. The object models they construct over a document > can > reflect essentially different interpretations of the same markup. > > I believe the view you're advocating will be reducible to practice only > with > the definition of a common underlying information structure. W3C has > wisely > dedicated a Working Group -- the Information Set WG, chaired by David > Megginson -- to this purpose. But the task is very large and requirements > have only been codified since February; see the Technical Note at > http://www.w3.org/TR/NOTE-xml-infoset-req.html. > > Regards, > Mike > > ---------------------------------------- > Michael Orr, CTO, VP R&D > Design Intelligence Inc, Seattle WA USA > http://www.design-intelligence.com > phone:206-718-2103 fax:206-343-7750 > > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list ***************************************************************************** The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this email are subject to the terms and conditions expressed in the governing KPMG client engagement letter. ***************************************************************************** XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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