Cooperation of heterogeneous legacy information systems: amethodological framework

摘要

In many enterprises the presence of heterogenous legacyinformation systems is pervasive, nevertheless the different componentorganizations need to cooperate in order to offer new services. TheDistributed Object Computing is a valid approach for the definition of acooperative model among heterogeneous legacy information systems, butfew methodologies and architectures explicitly address these issues.This paper describes a case study (or better, a set of case studies) inwhich these issues were addressed: it is the Cooperative Architectureover the Unitary Network of the Italian Public Administration. Then itproposes some methodological suggestions, stemming from the casestudies, for the development of cooperative systems based on distributedobject middleware