A Review of Post-Factum Software Integration Methods

This paper presents a review and discussion of post-factum software systems integration. The problem is de ned; the approaches and associated issues are discussed. Integration of redundant software components, developed using diverse software engineering methodologies, into a fault tolerant system is reviewed. Finally, a novel approach to fault tolerant software integration, based on the critical properties of software systems and the way in which these properties can be maintained by the integrated system despite a component failure, is presented for further research.