[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Two quick questions regarding restriction in XML Schema

• To: "Murali Mani" <mani@C...>,<xml-dev@l...>
• Subject: Re: Two quick questions regarding restriction in XML Schema
• From: "Jeff Greif" <jgreif@a...>
• Date: Wed, 22 May 2002 17:41:08 -0700
• References: <Pine.SOL.4.33.0205221257490.9486-100000@p...>

There is some danger in using 'accidental' subtype relationships that arise
from similar but unrelated hedge types.

We could have:
   president isa manager isa employee isa person
  vice-president isa manager isa employee isa person

and hedge types:
company-bowling-team -> (employee+)
5-year-plan-strategists -> (president, vice-president*)

Yes, the president and vice-presidents could form a bowling team,
but it's unlikely that the author of these types had that in mind.

Jeff

• Follow-Ups:
  • Re: Two quick questions regarding restriction in XML Schema
    • From: Murali Mani <mani@C...>

• References:
  • RE: Two quick questions regarding restriction in XML Schema
    • From: Murali Mani <mani@C...>

• Prev by Date: RE: Two quick questions regarding restriction in XML Schema
• Next by Date: DTDs, W3C Schemas, RELAX NG, Schematron?
• Previous by thread: RE: Two quick questions regarding restriction in XML Schema
• Next by thread: Re: Two quick questions regarding restriction in XML Schema
• Index(es):
  • Date
  • Thread