John: (01)
As someone who mapped XML to EDI and other formats, this statement gave us
lots of things to think about: (02)
On 1/8/08 6:47 AM, "John F. Sowa" <sowa@xxxxxxxxxxx> wrote: (03)
> * Syntax. The syntactic function of context is to group, delimit,
> quote, or package a section of text. (04)
The issue arises when one builds automatic mappers based on metadata
artifacts stored in a registry-repository. Even if we sit down and agree on
the semantics of "First Name of Human Being" as a data element and give it a
metadata representation term of "FirstNameOfHuman" (type=string) and
constrain the instance values of a list of pre-approved names, there is a
syntactic context issue at mapping. (05)
If it appears in Xan XML instance of a purchase order using the Xpath syntax
in the hierarchic context of: (06)
//PurchaseOrder/BuyerParty/FirstNameOfHuman (07)
The exact same data element has slightly different semantics (strictly in
the context of mapping to another instance of XML) if it appears in a
different hierarchic context of: (08)
//PurchaseOrder/SellerParty/FirstNameOfHuman (09)
As the BuyerParty vs. Seller Party hierarchic context qualifies the data
element. (010)
Is this the type of syntax context you refer to? (011)
Duane (012)
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