Bernd Neumayr, Katharina Grün, Michael Schrefl,
"Multi-Level Domain Modeling with M-Objects and M-Relationships"
, in Markus Kirchberg, Sebastian Link (eds.): Proceedings of the 6th Asia-Pacific Conference on Conceptual Modeling (APCCM), January 20-23, 2009, Wellington, New Zealand, 2009, Volume 96, Conceptual Modelling 2009, in Australian Computer Science Communications, Serie Conferences in Research an d Practice in Information Technology (CRPIT), Vol. 31, Nummer 6, Australian Computer Society, Inc. (ACS), Seite(n) 107-116, 1-2009, ISBN: 978-1-920682-77-4, ISSN: 1445-1336
Multi-Level Domain Modeling with M-Objects and M-Relationships
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Proceedings of the 6th Asia-Pacific Conference on Conceptual Modeling (APCCM), January 20-23, 2009, Wellington, New Zealand, 2009
Volume 96, Conceptual Modelling 2009
Using traditional semantic data modeling, multi-level modeling can be achieved by representing objects in different abstraction hierarchies, namely classification, aggregation and generalization. This, however, leads to accidental complexity, complicating maintenance and extension. Several modeling techniques, like deep instantiation, powertypes and materialization, have been proposed to reduce unnecessary complexity in modeling objects at multiple levels. Multi-level objects (m-objects) and multi-level relationships (m-relationships) build on these results and provide a natural, intuitive representation of the concretization of objects and relationships along multiple levels of abstraction. By integrating aspects of the different abstraction hierarchies in a single concretization hierarchy, they improve readability and simplify maintenance and extension as compared to previous approaches. The discussion on conceptual modeling is complemented by a brief presentation of M-SQL, a data manipulation and query language for working with m-objects and m-relationships in an object-relational setting.
Keywords: Conceptual Modeling, Multi-Level Modeling, Multiple Abstraction
Sprache der Kurzfassung:
Australian Computer Science Communications
Australian Computer Society, Inc. (ACS)
Conferences in Research an d Practice in Information Technology (CRPIT)
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