ABSTRACT
There are an ever-growing number of approaches to integration of ontologies. Also, existing approaches and tools evolve constantly to improve on their capabilities and functionality. Hence, their exhaustive survey is outside the scope of a research textbook. More important and useful is to present and evaluate the distinguishing (i.e., more universal) characteristics of approaches. Based on this objective, some of the most known, interesting, or different approaches are selected and presented in the next sections. Approaches that are not presented here, or will be developed in the future, can still be understood, compared, or evaluated on the basis of the framework presented in the previous chapter, and in a manner very similar to the one presented below.
