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RE: Versioning vs Temporal modeling of Patient State

From: Kashyap, Vipul <VKASHYAP1@PARTNERS.ORG>
Date: Thu, 11 Jan 2007 19:37:21 -0500
Message-ID: <2BF18EC866AF0448816CDB62ADF6538105EAF09F@PHSXMB11.partners.org>
To: "Nigam Haresh Shah" <nigam@stanford.edu>, "Chimezie Ogbuji" <ogbujic@bio.ri.ccf.org>
Cc: "Trish Whetzel" <whetzel@pcbi.upenn.edu>, "kc28" <kei.cheung@yale.edu>, "Alan Ruttenberg" <alanruttenberg@gmail.com>, "w3c semweb hcls" <public-semweb-lifesci@w3.org>


> We are not talking about the Class here. Nothing is happening to the class
> definition and its criteria for membership for an instance are unchanged.
> It is the instance that changes its characteristics and now has
> characteristics that can make it a member of a different class. The two
> classes in question are unchanged.

[VK] True, but Chimezie's question still remains valid. I wonder if someone has
developed guidelines on when something is a version vs a new class?
> 
> So, my example still stands. The next version of the instance now belongs
> to
> a different class (it is still Tom's tumor, now it might be TNM 3 instead
> of
> TNM 1).... it is this change in instances that needs to be tracked.

[VK] The only difference is I do not view it as a version in the content
management sense. IMHo, it's more appropriate to view and model as a dynamic
state variable changing over time.

---Vipul
.




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Received on Friday, 12 January 2007 00:38:17 UTC

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