Persistent Application Systems and Environments


Keywords: persistent application systems, CAD, CAM, office automation, GIS, software enginnering environments, object oriented databases

Start Date: 1 December 92 / Status: finished / Duration: 36 months

[ participants / contact]

Objectivies and Approach

The objective of the collaboration is to clarify and improve the current critical situation in the construction, maintenance and operation of Persistent Application Systems (PAS).

The European side has formulated within the BR FIDE project a consistent model for such applications so that they may be constructed in the context of a vastly simpler and more coherent environment. Through concept and technology integration, a Formally Integrated Data Environment has been achieved which is leading to the construction of demonstrable database programming language environments, database system environments and PAS workbench.

European links: The FIDE 2 BRA ESPRIT project (6309)

Progress and Results

The research has concentrated in the following areas: linguistic support for transactions, concurrency, distribution and recobery; the integration of a PAS workbench with new language designs that assume automated program constructions; the appropriate bulk types; the use of the reflection in PAS programming; subtyping anomalies in present database programming languages; the relationship between polymorphisms and infinite union types.

Information Dissemination Activities and/or Exploitation

Joint international workshops have been organised in France (1994), Scotland (1995) which resulted in the consolidation of resesearch results in PAS on both sides of the Atlantic, visits from the EU to the US sites took place regularly and aimed at integrating the latest findings in the domain into the targeted PAS workbench.

More can be found at


University of St. Andrews
Mathematical and Computational Sciences
North Haugh, St. Andrews KY16 9SS, UK

EU Partners

University of St. Andrews, UK
University of Hamburg, D
Consiglio Nazionale delle Ricerche, I
Università di Pisa, I
University of Glasgow, UK

Non-EU Partners

University of Southern California, USA
University of Massachussets, USA
Brown University, USA
Rutgers University, USA
Oregon Graduate Institute, USA
University of Pennsylvania, USA


Prof. Ronald Morrison
Tel: +44 334 76 161
Fax: +44 334 77 068

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FIDE - EC-US006, May 1997

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html version of synopsis by Nick Cook