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Re: semantics in schema (xsd)

• To: XML Developers List <xml-dev@l...>
• Subject: Re: semantics in schema (xsd)
• From: David Megginson <dmeggin@a...>
• Date: Fri, 27 Feb 2004 12:47:22 -0500
• In-reply-to: <002201c3fd4f$5916b550$0201a8c0@IRENE>
• References: <002201c3fd4f$5916b550$0201a8c0@IRENE>
• User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040122 Debian/1.6-1

Irene Polikoff wrote:

> Well, this seem to go back to the question of whether "husband" should
> be treated as a class - a subclass of males or as a relationship (object
> property).

I'd say forget about classes and make your objects big bags of properties 
(attributes and relationships).  The main advantages of classes for 
object-oriented programming -- code reuse and type-safe polymorphism -- 
don't even apply to simple information representation, so why pay the costs 
of a class structure if you don't receive any benefits?

  There exists an entity A.
  A is human.
  A is male.
  A is married to B.
  A is a biological parent of C.

That's not so hard, is it?


All the best,


David

• References:
  • RE: semantics in schema (xsd)
    • From: "Irene Polikoff" <Irene@t...>

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