ConceptBase

ConceptBase (a.k.a. ConceptBase.cc) is a deductive and object-oriented database management system developed at University of Skövde. Earlier development was done at University of Passau (1987-1992), University of Aachen (1992-2003), and University of Tilburg (1997-2013). It is mainly used for conceptual modeling and metamodeling in the domain of software engineering and related domains. ConceptBase.cc is free and open-source software.

ConceptBase combines the following features:


 * Object-oriented concepts such as classes and inheritance
 * Deductive rules evaluated by a Datalog engine
 * Active rules conforming to the event condition action (ECA) paradigm
 * Recursive function definitions
 * Metamodeling with arbitrarily many abstraction levels (metaclasses, meta metaclasses)

ConceptBase implements O-Telos, which is a variant of the knowledge representation Telos.