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Contenido archivado el 2024-04-19

Hypertext Interface for Information: Multimedia and Relational Databases

Objetivo

The HIFI project aims at creating a set of tools to allow a reader to access, via a hypertext interface, a large body of information managed by external (possibly pre-existing) databases, either relational or multimedia.
A set of tools to allow a reader to access, via a hypertext interface, a large body of information managed by external (possibly pre-existing) databases, either relational or multimedia, has been created. The approach is based on using a model based description (mapping) of the hypertext application, defined in a declarative and/or operational style, that translates hypertext operations (search, queries and navigation) into operations on the underlying information base, and also materializes hypertext objects of the underlying databases. A suitable model is also being developed for multimedia information in order to define the mapping by abstracting from strict implementation considerations.

A repository acts as an active dictionary, storing the model based schema (description) of the interface application, the schemas of the interfaces databases, and the mapping between the two. During the configuration phase such definitions are extracted (off line) from the repository and made available to the execution tools, in a suitable format. Methodologies to support the hypertext interface development process are also being investigated.

Three different real life applications (for banks, hospitals and museums) are being developed to show the validity of the approach.
The approach is based on using a model-based description (mapping) of the hypertext application, defined in a declarative and/or operational style, that translates hypertext operations (search, queries and navigation) into operations on the underlying information base, and also "materialises" hypertext objects, using objects of the underlying databases. A suitable model is also being developed for multimedia information in order to define the mapping by abstracting from strict implementation considerations.

A repository acts as an active dictionary, storing the model-based schema (description) of the interface application, the schemas of the interfaced databases, and the mapping between the two.

During the "configuration" phase such definitions are extracted (off-line) from the repository and made available to the execution tools, in a suitable format.

Methodologies to support the hypertext interface development process are also being provided.

Three different real-life applications (for banks, hospitals and museums) have been developed to show the validity of the approach.

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Coordinador

Systems and Management SpA
Aportación de la UE
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Dirección
Via Vittorio Alfieri 19
10121 Torino
Italia

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