1. TOWNTOLOGY Groupware Robert Laurini INSA – Lyon

2. Objectives Providing tools for ontological engineering Designing sub-ontologies Versioning Consolidation Cross-Referencing

3. Ontology repository Once an ontology is ready –be stored into a repository –anybody can read it –only the custodian can update/replace it –inner quality control –outer quality control –consolidation –cross-referencing is possible

4. Languages Presently, the meta-language is English Possibility of using any kind of languages (Latin alphabet) for concepts No translation is provided Still open issue

5. Post-consensus ontology Tools for - interoperability - mediator generation - deduction Pre-consensus and Post- consensus ontologies Pre-consensus ontology Consensus among actors Tools for - concept identification - attribute identification - concept organization - actor's points of view - concept repository

6. Cleaning Mail Electricity No Cleaning Mail Electricity Yes Cleaning Mail Electricity Yes Cleaning Mail Electricity No Yes Multiple definitions

7. Bus Collective transportation Crossroad Zebra area Traffic light Traffic regulation Urban furniture Car Mobility Visual entry

8. Consolidation Inner quality control Versioning –possibility of replacing an ontology by a new one Cross-referencing –links between two concepts, each in one ontology –adding new definitions of a concept already stored in another ontology Informing the concerned custodians

9. Ontology Sub-ontology Concept Photo Zone Relation Type Relation 1-n 1-1 1-n 1-1 1-n 0-n 1-n 1-1 Definition 1-n 1-1 1-n 2-2 1-n

10. Sub-ontology yet in the repository Concept D Concept C Existing definitions SUB-ONTOLOGY 1 Newcoming sub-ontology Concept A Concept B Concept C Intra-ontology Relation Inter-ontology Relation Additional definition SUB-ONTOLOGY 2 This additional definition must be added