W3C home > Mailing lists > Public > public-semweb-lifesci@w3.org > January 2007

When is something a version vs a new class?

From: Kashyap, Vipul <VKASHYAP1@PARTNERS.ORG>
Date: Thu, 11 Jan 2007 19:31:01 -0500
Message-ID: <2BF18EC866AF0448816CDB62ADF6538105EAF09C@PHSXMB11.partners.org>
To: "Chimezie Ogbuji" <ogbujic@bio.ri.ccf.org>
Cc: "Nigam Haresh Shah" <nigam@stanford.edu>, "Trish Whetzel" <whetzel@pcbi.upenn.edu>, "kc28" <kei.cheung@yale.edu>, "Alan Ruttenberg" <alanruttenberg@gmail.com>, "w3c semweb hcls" <public-semweb-lifesci@w3.org>



> If a class has a particular 'definition' (i.e., the criteria for
> membership of its instances) at a particular time and that definition
> 'changes' then we are talking about a different class
> altogether not a 'version' of the same class - the extension of both
> classes are no longer the same.  Unless the definition change is
> annotative only and doesn't really have any 'logical' consequences.  In
> which case a SKOS, time-stamped annotation for a human reader is
> sufficient and what we really have in mind.

[VK] This is a very interesting question and Chimezie has suggested some
criteria to address this.

Maybe we can take some ideas from way software is versioned, i.e., when is
something a major release vs a minor release? Just thinking aloud ...




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Received on Friday, 12 January 2007 00:31:31 UTC

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