RE: syntax, model
> -----Original Message----- > From: Tyler Close [mailto:tyler@w...] > Sent: Friday, October 24, 2003 9:57 AM > To: Rich Salz > Cc: xml-dev@l... > Subject: Re: syntax, model > > > What's the difference between saying: "the data will fit this > form" versus "the possible values are of this form"? Not much. However in the XML world people have come to make the distinction between describing the structure of a document (location of elements and attributes) and specifying the actual values in the document (textual content of elements and attributes). > > When you see "xs:any" at the end of an "xs:complexType" > declaration, > > do you think "base class" or do you think ".*" (the regexp > pattern). > > It took me some time to get away from the first notion, and > it's still > > hard to come up with good words to explain it. > > > > What is the data model of this? > > > > <xs:element name="Address"> > > <xs:complexType> > > <xs:element name="Street"/> > > <xs:element name="Country"/> > > <xs:element name="PostalCode"/> > > </xs:complexType> > > </xs:element> > > We're not connecting on something here, because for me, that > XML snippet does describe a data model. It says an Address is > composed of a Street, Country and Postal Code. What else is > there for a data model to say about an Address? Since the types of the Street, Country and PostalCode elements is xs:anyType meaning they can have any content I'm assuming Rich means that there isn't enough information there to do much processing with. -- PITHY WORDS OF WISDOM To err is human, to forgive is against department policy. This posting is provided "AS IS" with no warranties, and confers no rights.
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