Title
Materialization and its metaclass implementation
Abstract
Materialization is a powerful and ubiquitous abstraction pattern for conceptual modeling that relates a class of categories (e.g., models of cars) and a class of more concrete objects (e.g., individual cars). This paper presents materialization as a generic relationship between two classes of objects and describes an abstract implementation of it. The presentation is abstract in that it is not targeted at a specific object system. The target system is supposed to provide: 1) basic object-modeling facilities, supplemented with an explicit metaclass concept and 2) operations for dynamic schema evolution like creation or deletion of a subclass of a given class and modification of the type of an attribute of a class. The presentation is generic in that the semantics of materialization is implemented in a metaclass, which is a template to be instantiated in applications. Application classes are created as instances of the metaclass and they are thereby endowed with structure and behavior consistent with the generic semantics of materialization.
Year
DOI
Venue
2002
10.1109/TKDE.2002.1033775
Knowledge and Data Engineering, IEEE Transactions  
Keywords
Field
DocType
category theory,data models,meta data,object-oriented methods,abstraction pattern,classes of objects,conceptual modeling,inheritance,materialization,metaclass,object orientation,object-modeling,schema evolution
Metadata,Data mining,Data modeling,Programming language,Abstraction,Conceptual model,Computer science,Metaclass,Theoretical computer science,Category theory,Schema evolution,Semantics
Journal
Volume
Issue
ISSN
14
5
1041-4347
Citations 
PageRank 
References 
21
1.47
27
Authors
3
Name
Order
Citations
PageRank
Mohamed Dahchour17710.06
Alain Pirotte2916260.52
Esteban Zimányi3803132.55