Authors: Timo Aaltonen, Tommi Mikkonen
Addresses: Tampere University of Technology, P.O. Box 553, FIN-33101 Tampere, Finland. ' Tampere University of Technology, P.O. Box 553, FIN-33101 Tampere, Finland
Abstract: Complex computer systems are seldom implemented from scratch, but they contain significant amounts of legacy code, which is under continuous pressure for evolution. We propose a management method for reactive and distributed systems, based on creating a formal abstraction hierarchy to model the system with abstractions that exceed those that are used as implementation facilities. The hierarchy is used to estimate an effort needed for implementing a modification by associating the modification to abstractions in the hierarchy and by determining the abstractions that need to be revised to retain the hierarchy consistency.
Keywords: abstractions; formal methods; aspect orientation; software evolution; formal abstraction hierarchy.
International Journal of Computer Applications in Technology, 2008 Vol.31 No.1/2, pp.120 - 130
Published online: 27 Mar 2008 *Full-text access for editors Access for subscribers Purchase this article Comment on this article