Extending the DEMO methodology for determining information systems requirements

High competition and the need to meet market demand are some reasons behind the exploitation of Information and Communication Technology (ICT) to automate activities within an enterprise. The Design and Engineering Methodology for Organizations (DEMO) methodology provides a powerful way of thinking to deal with enterprise complexity. It gives a clear understanding of the business of an enterprise from a social perspective. However, neither the methodology nor its available extensions give tangible and complete explanation for linking the business model to the information system model. Therefore, this thesis’s objective is to contribute in bridging the gap between the business organizational aspect (B-organization) and the supporting information system (I-applications) by extending the DEMO methodology. The DEMO methodology is extended to identify and model intellect organizational aspect (I-organization) of an enterprise to determine a complete set of functional requirements for the I-applications. Literature study and a case study of Mprise B.V. were conducted to achieve the objective. The link between those organizational aspects lies in the Action Model of the B-organization or more precisely on its coordination-specific information. The transaction in the ontological model of the I-organization is defined on the basis of every piece of information needed by the business actor (B-actor). The presence of the I-organization model shows the distribution of the responsibility between the B-actors and the I-actors. The benefits of the extended methodology are shown through the improvement and the application of DEMOUseCase approach to Mprise case study. The extended DEMO methodology is able to produce complete informational/intellectual functional requirements for the I-applications and thus also for the business applications (B-applications) e.g., in providing the basis for modeling of B-applicationsSoftware engineerningElectrical Engineering, Mathematics and Computer Scienc