Now showing items 1-6 of 6

    • An algorithm for the automatic transformation of ontology axioms into a rule model 

      Vasilecas, Olegas; Kalibatienė, Diana (Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing "CompSysTech'07", Rousse, Bulgaria, 14-15 June 2007 / European Thematic Network for Doctoral Education in Computing, State Agency for Information Technology and Communications, Bulgarian Union of Automation and Informatics, 2007)
      Quite a number of authors are analysing transformation of ontology into conceptual data model and its usefulness in information systems development, since the semantic content expressed by ontology can be transformed into ...
    • Application of business rules approach in clinical trials 

      Vasilecas, Olegas; Lebedys, Evaldas (Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing "CompSysTech'06", Veliko Tarnovo, Bulgaria, 15-16 June 2006 / Academic Society of Computer Systems and Information Technology, the Bulgarian Chapter of the Association for Computing Machinery, the Bulgarian Union of Automation and Informatics, 2006)
      The paper discusses the use of Unified Modelling Language (UML) for business rules modelling. Different techniques of business rule representation in the models reflecting different aspects of a particular system are briefly ...
    • Building ontologies from relational databases using reverse engineering methods 

      Trinkūnas, Justas; Vasilecas, Olegas (Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing "CompSysTech'07", Rousse, Bulgaria, 14-15 June 2007 / European Thematic Network for Doctoral Education in Computing, State Agency for Information Technology and Communications, Bulgarian Union of Automation and Informatics, 2007)
      The fast changing requirements are the main problem of creating and/or modifying conceptual data models. Most conceptual data models of information systems are created from scratch, wasting time and resources. Ontology ...
    • Formal transformation of ontology axioms to application domain rules 

      Kalibatienė, Diana; Vasilecas, Olegas (CompSysTech'08 : proceedings of the International Conference on Computer Systems and Technologies and workshop for PhD students in computing. Gabrovo, Bulgaria, 12-13 June 2008, held at the Technical University of Gabrovo, Bulgaria / State Agency for Information Technologies and Communications, Union of Automation and Informatics, 2008)
      Transformation rules can be defined in two ways – theoretical and empirical. A theoreticalbased definition of transformation is a formal way to prove and verify some theory. Therefore, it is precise, the likelihood of ...
    • On approach for enterprise ontology transformation into conceptual model 

      Vasilecas, Olegas; Kalibatienė, Diana; Trinkūnas, Justas (Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing "CompSysTech'06", Veliko Tarnovo, Bulgaria, 15-16 June 2006 / Academic Society of Computer Systems and Information Technology, the Bulgarian Chapter of the Association for Computing Machinery, the Bulgarian Union of Automation and Informatics, 2006)
      Conceptual models of information systems are used to capture the meaning of an application domain as perceived by someone. The important requirement for developing conceptual models is to reduce efforts, costs and time. ...
    • Self-organizing map for conceptual modelling 

      Laukaitis, Algirdas; Vasilecas, Olegas (Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing "CompSysTech'06", Veliko Tarnovo, Bulgaria, 15-16 June 2006 / Academic Society of Computer Systems and Information Technology, the Bulgarian Chapter of the Association for Computing Machinery, the Bulgarian Union of Automation and Informatics, 2006)
      Textual description of the concept plays an important role in the conceptual model comprehensibility. In this paper, the self-organizing map to test the model comprehensibility is suggested. An explanatory text of the ...