[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML Schema as a data modeling tool
On Thu, Oct 3, 2013 at 12:57 PM, Peter Hunsberger <peter.hunsberger@gmail.com> wrote:
I work on data models and document models for $EMPLOYER. There are now about 300 data models and about 150-200 schemas (highly modularized; I'm not sure how many modules there are, but more than 500) that are "enterprise" in the sense that they are not specific to individual business units. I figure the job is about half done, though it may never be finished completely (eventually the cost of modeling exceeds the benefits: we don't and never will have a model of every asteroid in the solar system, even though the underlying physics is fairly simple) Though they have common factors and inter-model links aplenty, merging them into a single data model would be insane. (We do have a single ontology with about 1000 classes and maybe 300 properties, but it does not go down to the same detail as the schemas do by any means.)
Yes, maybe a single model for a department is plausible, depending on what the thousand people do and how many of them are doing unique work (having 10,000 ditchdiggers is not equivalent to having 10,000 C*Os). But not an enterprise of typical size and complexity. ($EMPLOYER and its corporate parent together have about 30,000 employees, almost all knowledge workers.)
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