[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Data warehousing and XML
-----Original Message----- From: Sean Mc Grath <digitome@i...> To: xml-dev@i... <xml-dev@i...> Date: 01 December 1997 11:16 Subject: Data warehousing and XML >I have read a number of articles about Data Warehousing... >it looks like an interesting potential app. for XML. > >As I (mis)understand it, you shovel all your corporate data from a variety >of sources (sales, purchasing, >production, memos, R&D etc.) into one humongous repository of data ... Firstly, I think XML has some work to do if it is to acquire acceptance in the database community: in particular, someone needs to show how its underlying data model relates to models like UML used in the database world; one would also like to see how a DTD can be translated to/from an ODL schema. The fact that XML uses terms like "entity" and "attribute" with completely different meanings from UML or ODMG doesn't help. Secondly, I think the "humongous repository" concept in data warehousing (sometimes ridiculed as the "data whorehouse") is going out of fashion. The modern approach is usually much more focused. In fact, the data warehouse concept has never really embraced documentary information like memos or research reports: it's all about old-fashioned "data". I do agree that in principle XML provides a good representation of data that is in transit between heterogeneous databases. One drawback is that it provides far more features than are required for this purpose, so people may go for simpler encodings. Mike Kay, ICL M.H.Kay@e... xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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