Integration of the viewpoint mechanism in federated databases

Benchikha, Fouzia; Boufaïda, Mahmoud; Seinturier, Lionel

doi:10.1145/372202.372341

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…All these models consider the viewpoint as a view or external schema defined with the aim of adapting an existing structure to new needs. In our study we argue that the view and the viewpoint concepts concern respectively the exploitation step and the design one (Benchikha and al. 2001).…”

Section: Related Workmentioning

confidence: 86%

Extending Object Oriented Databases to Support the Viewpoint Mechanism

Benchikha¹,

Boufaida²

2005

Proceedings of the Seventh International Conference on Enterprise Information Systems

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An important dimension in the database technology evolution is the development of advanced/sophisticated database models. In particular, the viewpoint concept receives a widespread attention. Its integration to a data model gives a flexibility for the conventional object-oriented data model and allows one to improve the modeling power of objects. On the other hand, the viewpoint concept can be used as a means to master the complexity of the current systems permitting a distributed manner to develop them. In this paper we propose a data model MVDB (Multi-Viewpoint DataBase model) that extends the object database model with the viewpoint mechanism. The viewpoint notion is used as an approach for a distributed development of a database schema, as a means for object multiple description and as a mechanism for dealing with the integrity constraint problems commonly met in distributed environment.

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Section: Related Workmentioning

confidence: 86%

Extending Object Oriented Databases to Support the Viewpoint Mechanism

Benchikha¹,

Boufaida²

2005

Proceedings of the Seventh International Conference on Enterprise Information Systems

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show abstract

“…All these models consider the viewpoint as a view defined with the aim of adapting an existing structure to new needs. In our study we argue that the view and the viewpoint concepts concern the exploitation step and the design step respectively (Benchikha, Boufaida & Seinturier, 2001). Thus, while views provide users with a schema that is structured appropriately for their applications, viewpoints must be directly related to an object's description and deal with multiple instantiations of the same object (Figure 1, (b), (c)).…”

Section: Viewsmentioning

confidence: 99%

Viewpoints: a framework for object oriented database modelling and distribution

Benchikha¹,

Boufaïda

Seinturier

2005

Data Sci. J.

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The viewpoint concept has received widespread attention recently. Its integration into a data model improves the flexibility of the conventional object-oriented data model and allows one to improve the modelling power of objects. The viewpoint paradigm can be used as a means of providing multiple descriptions of an object and as a means of mastering the complexity of current database systems enabling them to be developed in a distributed manner. The contribution of this paper is twofold: to define an object data model integrating viewpoints in databases and to present a federated database system integrating multiple sources following a local-asextended-view approach.

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“…If the local constraints are well apprehended, it is difficult to take into account the global constraints. Within the framework of the MVDB model, the classical conflicts usually met in federated databases are solved by the viewpoint paradigm [6] such as names, semantic and structural conflicts. However, other types of conflicts are distinguished.…”

Section: Mvdb Consistencymentioning

confidence: 99%

“…In this paper, we report an ongoing research we are engaged in [6]. Our work is aimed at extending object-oriented database technology to accommodate multiple and distributed modelling of data.…”

Section: Introductionmentioning

confidence: 99%

The Viewpoint Mechanism for Object-oriented Databases Modelling, Distribution and Evolution

Benchikha¹,

Boufaïda²

2007

CIT

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Over the past years, most of the research dealing with the object multiple representation and evolution has proposed to enrich the monolithic vision of the classical object approach in which an object belongs to one hierarchy class. In databases, much work has been done towards extending models with advanced tools such as view technology, schema evolution support, multiple classification, role modelling and viewpoints. In particular, the integration of the viewpoint mechanism to the conventional object-oriented data model gives it flexibility and allows one to improve the modelling power of objects. The viewpoint paradigm refers to the multiple description, the distribution, and the evolution of object. Also, it can be an undeniable contribution for a distributed design of complex databases. The motivation of this paper is to define an object data model integrating viewpoints in databases and to present a federated database architecture integrating multiple viewpoint sources following a local-as-extended-view data integration approach.

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Integration of the viewpoint mechanism in federated databases

Cited by 4 publications

References 12 publications

Extending Object Oriented Databases to Support the Viewpoint Mechanism

Extending Object Oriented Databases to Support the Viewpoint Mechanism

Viewpoints: a framework for object oriented database modelling and distribution

The Viewpoint Mechanism for Object-oriented Databases Modelling, Distribution and Evolution

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