From: ontology-summit-bounces@xxxxxxxxxxxxxxxx [mailto:ontology-summit-bounces@xxxxxxxxxxxxxxxx]
On Behalf Of Alan Rector
Sent: Tuesday, December 18, 2012 10:00 AM
To: Ontology Summit 2013
Subject: [ontology-summit] Reasoners and the life cycle
Should there be a subheading someplace for the extra steps that are required in the life cycle if significant inference is involved, e.g. with large scale DL/OWL based terminologies/ontologies such as SNOMED-CT.
* The use of a reasoner makes development more like developing rather like developing with an compiled language. You only know what you have after your run the reasoner, but you have to understand
the results in terms of what was asserted. The consequences of assertions are often unintended - "bugs".
* Finding unintended inferences can be hard
* Tracing unintended inferences to the source in the assertions can be hard.
We have practical experience with SNOMED CT - see our KCAP2011 paper  and other papers on my website