Long ago we used to follow the one true Codd, and data normalisation mattered. Now middleware, messaging, MapReduce and Twitter seem to have blown that idea away. Charles Betz may not agree but it seems to me data modelling is in retreat. Certainly it amazes me that a framework like ITIL can gain such ascendancy without even a token effort at a data model. (Personally i think that is just pandering to the vendors with existing products who would all end up with a non-complaint model). As a result I think some obvious entities are missed out, and one of those is the Interruption.
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