Architectural evolution of legacy systems

Author

Heineman, George T. ; Mehtra, A.

Author_Institution

Dept. of Comput. Sci., Worcester Polytech. Inst., MA, USA

fYear

1999

fDate

1999

Firstpage

4

Lastpage

12

Abstract

The purpose of this paper is to gain experience in solving real problems faced by a company. We first specify the system architecture of the AFS Master System (R) using our Component Specification Language (CSL). We then identified various problem evident in the current architecture of the AFS Master System (R). Based on an analysis of the architecture and these problems, we proposed a modification to the software architecture that addressed out of the seven main problems identified. The engineers made the appropriate changes to the software system (about one week of effort) and have noted a 25% improvement in efficiency as well as an improved system organization that can be more easily changed to meet future demands. We believe the type of architectural change described in this paper will prove useful to developers using similar technologies as described in this paper

Keywords

business data processing; formal specification; software architecture; software maintenance; AFS Master System; Component Specification Language; architectural change; architectural evolution; efficiency; legacy systems; software architecture; system architecture; system organization; Application software; Communication system control; Computer architecture; Computer science; Connectors; Control systems; Protocols; Software architecture; Software systems; Specification languages;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Software and Applications Conference, 1999. COMPSAC '99. Proceedings. The Twenty-Third Annual International

Conference_Location

Phoenix, AZ

ISSN

0730-3157

Print_ISBN

0-7695-0368-3

Type

conf

DOI

10.1109/CMPSAC.1999.812507

Filename

812507