Object oriented in enterprise modelling and information system design

The paper provides justification for the need of business analysis as a distinct stage during the IS development process. A modelling methodology in order to be capable of modelling the business analysis stage should be able to provide sufficient level of abstraction and business analysis specific concepts that represent the organisation independent of any design or implementation issues. The spiral model in OO software development is preferred to the waterfall model since during the OO software development process the boundary that distinguishes OOA from OOD is not very easily identified and a lot of iterations are required before a certain stage is completed. There also exists a lot of similarity in the modelling concepts used in business analysis in IS development and OOA in OO software development. As a consequence the paper suggests the use of business analysis as a replacement of OOA in OO IS development