Migrating legacy systems to the Web: an experience report

Author

Aversano, Lerina ; Canfora, Gerardo ; Cimitile, Aniello ; De Lucia, Andrea

Author_Institution

Fac. of Eng., Sannio Univ., Benevento, Italy

fYear

2001

fDate

2001

Firstpage

148

Lastpage

157

Abstract

A key to successfully moving to the Internet while salvaging past investments in centralised, mainframe-oriented software development is migrating core legacy applications towards Web-enabled client-server architectures. This paper presents the main results and lessons learned from a migration project aimed at integrating an existing COBOL system into a Web-enabled infrastructure. The original system has been decomposed into its user interface and server (application logic and database) components. The user interface has been migrated into a Web browser shell using Microsoft Active Server Pages (ASP) and VBScript. The server component has been wrapped with dynamic load libraries written in Microfocus Object COBOL, loaded into Microsoft Internet Information Server (IIS), and accessed by the ASP pages

Keywords

COBOL; Internet; client-server systems; information resources; software libraries; software maintenance; user interfaces; Internet; Microfocus Object COBOL; Microsoft Active Server Pages; Microsoft Internet Information Server; VBScript; Web browser shell; Web-enabled infrastructure; World Wide Web-enabled client-server architectures; application logic components; centralised mainframe-oriented software development; core legacy applications; database components; dynamic load libraries; legacy systems migration; past investments; server components; user interface; wrappers; Application software; Application specific processors; Computer architecture; Databases; Internet; Investments; Logic; Programming; User interfaces; Web server;

fLanguage

English

Publisher

ieee

Conference_Titel

Software Maintenance and Reengineering, 2001. Fifth European Conference on

Conference_Location

Lisbon

Print_ISBN

0-7695-1028-0

Type

conf

DOI

10.1109/.2001.914979

Filename

914979