The value of data is the insight which comes when different bits of data are joined together. For that process to provide value, the world must contain all sorts of kinds of information of different types, and it must be linked together. Linked data involves using ontologies. But if you are a developer, how do you pick those ontologies? The art is to use several different ontologies in the same document, the same message. In a typical application, part of which you need to express will be in ...
