1. Ontologies and Applications Martin Hepp Semantics in Business Information Systems Group

2. Martin Hepp Ontologies Component Team Head of Team –Martin Hepp Researchers –Katharina Siorpaes –Francois Scharffe Junior Researchers –Junior Researchers –Andreas Radinger –Andreas Wechselberger –Alexander Gamper –Doris Silbernagl –Andreas Klotz –Michael Waltl –Werner Huber Meetings –Mostly on demand and virtual

3. Martin Hepp Computer Systems, Models, and the Real World Phenomenon P1 Phenomenon P2 Abstraction for P1 Abstraction for P2 Space of Possible Transformations Algorithm Model

4. Martin Hepp The Root of Interoperability Problems: Weak Ties between Reality and Abstractions of Reality Model of Reality Data Processes Reality Weak, informal treaty Symptoms: We can hardly validate whether a given ER model is correct We face difficulties making sure that the customization of SAP myERP matches the business needs of a given enterprise Treaty not accessible to computers

5. Martin Hepp Semantic Web: A very simple ontology „Corporation“ = http://myont/corporationhttp://myont/corporation „Business“ = http://myont/businesshttp://myont/business Each instance of „Corporation“ be also an instance of „Business“. „Siemens“ = http://companies.org/Siemenshttp://companies.org/Siemens „Siemens“ is an instance of „Corporation“. + Group consensus about this representation Languages: RDF-S, OWL, WSML, CycL,...

6. Martin Hepp Six Effects of Ontologies Using Philosophical Notions as Guidance for Identifying Stable, Reusable Conceptual Elements Unique Identifiers for Conceptual Elements Excluding Unwanted Interpretations by Means of Informal Semantics Spotting Logical Inconsistencies Inferring Implicit Facts Automatically Excluding Unwanted Interpretations by Means of Formal Semantics From: Martin Hepp: Ontologies: State of the Art, Business Potential, and Grand Challenges, in: Martin Hepp, Pieter De Leenheer, Aldo de Moor, York Sure. (Eds.): Ontology Management: Semantic Web, Semantic Web Services, and Business Applications, ISBN 978-0-387-69899-1, Springer, 2007, pp. 3-22.

7. Martin Hepp Real-world Ontologies for E- Commerce OWL, WSML, SKOS variants of –eClass –UNSPSC http://www.heppnetz.de/projects/eclassowl/ http://www.heppnetz.de/projects/eclass-skos/ http://www.heppnetz.de/projects/eclasswsml/ http://www.heppnetz.de/projects/unspscowl/ http://www.heppnetz.de/projects/unspscskos/ http://www.heppnetz.de/projects/unspscwsml/

8. Martin Hepp GoodRelations An ontology for linking product descriptions and business entities on the Web http://www.heppnetz.de/projects/goodrelations/

9. Martin Hepp OntoNaviERP Using ontologies for improved navigation in SAP documentation http://www.heppnetz.de/projects/ontonavi/

10. Martin Hepp SKOS2GenTax Online tool for deriving OWL ontologies from SKOS categorization schemas http://www.heppnetz.de/projects/skos2gentax/

11. Martin Hepp OntoGame A pre-requisite for the Semantic Web to become a reality is the availability of annotated data. Tasks, that are difficult to do for a computer, but doable (not necessarily easy) for a human: –Ontology construction and maintenance –Annotation of content –Alignment of ontologies http://www.ontogame.org

12. Martin Hepp OntoGame Building the Semantic Web is not a one- time task, but a continuous challenge.  The work will never be done.

13. Martin Hepp OntoGame

14. Martin Hepp OntoGame

15. Thank you! Martin Hepp Semantics in Business Information Systems Group