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An ER-based framework for declarative web programming*

Published online by Cambridge University Press:  30 October 2012

MICHAEL HANUS  and
SVEN KOSCHNICKE
MICHAEL HANUS
Affiliation:
Institut für Informatik, CAU Kiel, D-24098 Kiel, Germany (e-mail: mh@informatik.uni-kiel.de, sven@koschnicke.de)
SVEN KOSCHNICKE
Affiliation:
Institut für Informatik, CAU Kiel, D-24098 Kiel, Germany (e-mail: mh@informatik.uni-kiel.de, sven@koschnicke.de)
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Abstract

We describe a framework to support the implementation of web-based systems intended to manipulate data stored in relational databases. Since the conceptual model of a relational database is often specified as an entity-relationship (ER) model, we propose to use the ER model to generate a complete implementation in the declarative programming language Curry. This implementation contains operations to create and manipulate entities of the data model, supports authentication, authorization, session handling, and the composition of individual operations to user processes. Furthermore, the implementation ensures the consistency of the database w.r.t. the data dependencies specified in the ER model, i.e., updates initiated by the user cannot lead to an inconsistent state of the database. In order to generate a high-level declarative implementation that can be easily adapted to individual customer requirements, the framework exploits previous works on declarative database programming and web user interface construction in Curry.

Keywords

web programmingfunctional logic programmingdatabasesentity-relationship models
Type
Regular Papers
Information
Theory and Practice of Logic Programming , Volume 14 , Issue 3 , May 2014 , pp. 269 - 291
Copyright
Copyright © Cambridge University Press 2012 

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Footnotes

*

This work was partially supported by the German Research Council (DFG) under grant Ha 2457/5-2.

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