Comparing Ontologies with ecco.

In this paper we present the diff tool ecco, which detects changes to both axioms and concepts between OWL ontologies. Furthermore, the tool aligns axiom changes between each other, according to a fine-grained change categorisation, and subsequently aligns axiom changes with the concepts that each of those directly affect. The diff is open source, and made available as a standalone command-line tool, as well as a Web-based application.