Inverse Wrappers for Legacy Information Systems Migration

Jean Henrard; Anthony Cleve; Jean-Luc Hainaut

Inverse Wrappers for Legacy Information Systems Migration

Jean Henrard, Anthony Cleve, Jean-Luc Hainaut

Faculty of Computer Science

Research output: Contribution in Book/Catalog/Report/Conference proceeding › Conference contribution

Abstract

The paper studies some problems that arise when a technology change induces the migration of a data-centered application. In particular, it addresses the difficult problem of migrating application programs from a legacy data manager, such as a COBOL file system, to a modern DBMS, such as a relational database management system. The approach suggested in this paper relies on the concept of inverse wrappers, that is, wrappers that simulate the legacy API on top of the new database. This architecture allows (1) the design of a fully normalized database rid of the anomalies of the legacy data, (2) future programs to be developed on a sound basis and (3) legacy programs to work on the new database with minimum transformation, and therefore at low cost. The paper describes the components of this architecture, a methodology to design them and a CASE tool that automates their generation.

Original language	English
Title of host publication	Proceedings of the First International Workshop on Wrapping Techniques for Legacy Systems (WRAP @ WCRE 2004)
Editors	Philippe Thiran, Willem Jan van, den Heuvel
Publisher	Technische Universiteit Eindhoven
Pages	30-43
Number of pages	14
Volume	04-34
Publication status	Published - 2004

Evolution: Evolution
Cleve, A.
1/01/10 → 31/01/10
Project: Research Axis

Cite this

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title = "Inverse Wrappers for Legacy Information Systems Migration",

abstract = "The paper studies some problems that arise when a technology change induces the migration of a data-centered application. In particular, it addresses the difficult problem of migrating application programs from a legacy data manager, such as a COBOL file system, to a modern DBMS, such as a relational database management system. The approach suggested in this paper relies on the concept of inverse wrappers, that is, wrappers that simulate the legacy API on top of the new database. This architecture allows (1) the design of a fully normalized database rid of the anomalies of the legacy data, (2) future programs to be developed on a sound basis and (3) legacy programs to work on the new database with minimum transformation, and therefore at low cost. The paper describes the components of this architecture, a methodology to design them and a CASE tool that automates their generation. ",

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editor = "Philippe Thiran and van, {Willem Jan} and den Heuvel",

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publisher = "Technische Universiteit Eindhoven",

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Inverse Wrappers for Legacy Information Systems Migration. / Henrard, Jean; Cleve, Anthony ; Hainaut, Jean-Luc.
Proceedings of the First International Workshop on Wrapping Techniques for Legacy Systems (WRAP @ WCRE 2004). ed. / Philippe Thiran; Willem Jan van; den Heuvel. Vol. 04-34 Technische Universiteit Eindhoven, 2004. p. 30-43.

Research output: Contribution in Book/Catalog/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Inverse Wrappers for Legacy Information Systems Migration

AU - Henrard, Jean

AU - Cleve, Anthony

AU - Hainaut, Jean-Luc

N1 - Publication editors : Philippe Thiran, Willem-Jan van den Heuvel

PY - 2004

Y1 - 2004

N2 - The paper studies some problems that arise when a technology change induces the migration of a data-centered application. In particular, it addresses the difficult problem of migrating application programs from a legacy data manager, such as a COBOL file system, to a modern DBMS, such as a relational database management system. The approach suggested in this paper relies on the concept of inverse wrappers, that is, wrappers that simulate the legacy API on top of the new database. This architecture allows (1) the design of a fully normalized database rid of the anomalies of the legacy data, (2) future programs to be developed on a sound basis and (3) legacy programs to work on the new database with minimum transformation, and therefore at low cost. The paper describes the components of this architecture, a methodology to design them and a CASE tool that automates their generation.

AB - The paper studies some problems that arise when a technology change induces the migration of a data-centered application. In particular, it addresses the difficult problem of migrating application programs from a legacy data manager, such as a COBOL file system, to a modern DBMS, such as a relational database management system. The approach suggested in this paper relies on the concept of inverse wrappers, that is, wrappers that simulate the legacy API on top of the new database. This architecture allows (1) the design of a fully normalized database rid of the anomalies of the legacy data, (2) future programs to be developed on a sound basis and (3) legacy programs to work on the new database with minimum transformation, and therefore at low cost. The paper describes the components of this architecture, a methodology to design them and a CASE tool that automates their generation.

M3 - Conference contribution

VL - 04-34

SP - 30

EP - 43

BT - Proceedings of the First International Workshop on Wrapping Techniques for Legacy Systems (WRAP @ WCRE 2004)

A2 - Thiran, Philippe

A2 - van, Willem Jan

A2 - Heuvel, den

PB - Technische Universiteit Eindhoven

ER -

Inverse Wrappers for Legacy Information Systems Migration

Abstract

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Evolution: Evolution

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