Ecore Models | Metamodels -> OWL Ontologies = OWLizer

We show how to use TwoUse's OWLizer to transform Ecore Models and Metamodels into OWL ontologies. In this example, the UML class diagram model elements are transformed into OWL individuals of the UML ontology and the UML metamodel classes are transformed into OWL classes.

UML + OWL Ontology and SPARQL

This demo of the TwoUse Toolkit shows UML class diagram, OWL ontology and SPARQL to dynamically classify instances at runtime. We model the variations of the class SalesOrder with the web ontology language, namely USSalesOrder and GermanSalesOrder. Later, we write a query operation that asks for the most specific type of the contextual object.

BPMN process model -> OWL ontology = Validating Process Refinements

"A crucial task in business process management is the validation of business process refinements. A business process refinement is a process description in a more fine-grained representation. The refinement is either with respect to an abstract model or with respect to component's principle behavior model. This video shows a process refinement based on the execution set semantics. Predecessor and successor relations of the activities are described in an OWL ontology in which the refinement is represented and validated by concept satisfiability checking."

More information on this paper

OWL ontology with UML Class Diagram Profile for OWL

How to create a simple OWL ontology using the OMG UML Profile for OWL with the TwoUse Toolkit.

Improving Software Design Patterns with UML, OWL and SPARQL

We deal with problems in common design patterns and proposes OWL to remedy these issues. We exploit the TwoUse approach, which integrates OWL and UML class diagrams to overcome drawbacks of the Strategy Pattern, that are also extensible to the Abstract Factory Pattern.

UML, OWL and SPARQL with TwoUse Toolkit - Demo

Since MDE and OWL provide complementary benefits, contemporary software development should make use of both approaches. This demo presented at the Sixth European Conference on Modeling Foundations and Applications enlightens the improvements from an integrated approach.

OWLizer = Software Languages -> OWL Ontologies Part II

The OWLizer transforms software language (Ecore Metamodel/Model) into OWL ontologies. In the following we present an extension of this simple model transformation approach. It is extended by transforming specific EAnnotations to specific OWL constructs. For example by annotating elements in the metamodel with „#Class“- as well as „#ObjectProperty“, EClassifiers and EReferences can be marked as appropriate OWL -Entities. Starting at the „#Class“-EAnnotation, further OWL-Classaxioms can be annotated, that means, by creating further nested EAnnotations.
An example is given in the following:


Here the OWLizer transforming the metamodel (depicted in figure 1) would result the following OWL ontology axioms and class expressions. EquivalentClasses(Cisco7603 ObjectMinCardinality(1 hasConfiguration. Configuration7603)).
Here the OWLizer is able to interpret the annotations and creates corresponding axioms in ontology (e.g. #ObjectMinCardinality means the creation of the corresponding class expressions in the ontology; #EquivalentClasses means the creation of the corresponding axiom).
In general we have built an annotation profile for annotating Ecore-based metamodels. The metamodel itself and in addition its annotations are transformed to a pure ontology by the OWLizer . Thus we extended the expressivity of the Ecore metamodeling language to a new comprehensive approach that combines standard metamodeling with using ontology-based expressions and axioms in an integrated manner.