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RE: The semantics of requirements and principles

From: <Kerry.Taylor@csiro.au>
Date: Wed, 13 May 2015 12:17:35 +0000
To: <frans.knibbe@geodan.nl>, <public-sdw-wg@w3.org>, <jeremy.tandy@gmail.com>
Message-ID: <3CD3C8BBF0D87B4D8154C3978732049C50EAD4C8@exmbx05-cdc.nexus.csiro.au>

(1)    These definitions look ok to me.

(2)    I’m not sure I would want to agree with (2), though, although I am struggling to construct a counter-example. Do we need agree on (2)?

From: Frans Knibbe [mailto:frans.knibbe@geodan.nl]
Sent: Saturday, 9 May 2015 12:51 AM
To: SDW WG Public List; Jeremy Tandy
Subject: The semantics of requirements and principles

Hello everyone (particularly Jeremy, on account of action 25<http://www.w3.org/2015/spatial/track/actions/25>),

In trying to fullfill action 24<http://www.w3.org/2015/spatial/track/actions/24> I have just made some entries in our glossary<https://www.w3.org/2015/spatial/wiki/Glossary_of_terms>. I have added definitions of the term requirement<https://www.w3.org/2015/spatial/wiki/Glossary_of_terms#requirement> and its subclasses functional requirement<https://www.w3.org/2015/spatial/wiki/Glossary_of_terms#functional_requirement> and non-functional requirement<https://www.w3.org/2015/spatial/wiki/Glossary_of_terms#non-functional_requirement>.

At this point, I would like to ask the group members the following:

  1.  Do you agree with the definitions?
  2.  We could say that functional requirements and non-functional requirements together form the complete set of possible requirements. Could there be practical problems with such a viewpoint?
I have not added a definition for 'principles' yet, because I thought it would be smart to agree on the definitions of requirements first, and see if there is a need for additional terms later. If there is, I do see a resemblence between the term business requirements<http://en.wikipedia.org/wiki/Business_requirements> and the term 'principles' as it has been used in this group.


Frans Knibbe
President Kennedylaan 1
1079 MB Amsterdam (NL)

T +31 (0)20 - 5711 347
E frans.knibbe@geodan.nl<mailto:frans.knibbe@geodan.nl>

Received on Wednesday, 13 May 2015 12:18:35 UTC

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