Knowledge bases, data bases and object-oriented systems (referred to in the paper as Object-Centered systems) all rely on attributes as the main construct used to associate properties to objects; among these, a fundamental role is played by the so-called part-whole relation. The representation of such structural information usually requires particular semantics together with specialized inference and update mechanisms, but rarely do current modelling formalisms and methodologies give it a specific, 'first-class' dignity. The main thesis of this paper is that the part-whole relation cannot simply be considered as an ordinary attribute: its specific ontological nature requires to be understood and integrated within data-modelling formalisms and methodologies. On the basis of such an ontological perspective, we survey the conceptual modelling issues involving part-whole relations, and the various modelling frameworks provided by knowledge representation and object-oriented formalisms.

Part-whole relations in object-centered systems: An overview / A., Artale; E., Franconi; N., Guarino; Pazzi, Luca. - In: DATA & KNOWLEDGE ENGINEERING. - ISSN 0169-023X. - STAMPA. - Volume 20, Issue 3:(1996), pp. 347-383. [10.1016/S0169-023X(96)00013-4]

Part-whole relations in object-centered systems: An overview

PAZZI, Luca
1996

Abstract

Knowledge bases, data bases and object-oriented systems (referred to in the paper as Object-Centered systems) all rely on attributes as the main construct used to associate properties to objects; among these, a fundamental role is played by the so-called part-whole relation. The representation of such structural information usually requires particular semantics together with specialized inference and update mechanisms, but rarely do current modelling formalisms and methodologies give it a specific, 'first-class' dignity. The main thesis of this paper is that the part-whole relation cannot simply be considered as an ordinary attribute: its specific ontological nature requires to be understood and integrated within data-modelling formalisms and methodologies. On the basis of such an ontological perspective, we survey the conceptual modelling issues involving part-whole relations, and the various modelling frameworks provided by knowledge representation and object-oriented formalisms.
Volume 20, Issue 3
347
383
Part-whole relations in object-centered systems: An overview / A., Artale; E., Franconi; N., Guarino; Pazzi, Luca. - In: DATA & KNOWLEDGE ENGINEERING. - ISSN 0169-023X. - STAMPA. - Volume 20, Issue 3:(1996), pp. 347-383. [10.1016/S0169-023X(96)00013-4]
A., Artale; E., Franconi; N., Guarino; Pazzi, Luca
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/856696
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