Print Email Facebook Twitter How the DEMO methodology could be a valuable addition to a testing framework Title How the DEMO methodology could be a valuable addition to a testing framework Author Metz, L.J. Contributor Dietz, J.L.G. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Date 2008-07-08 Abstract Because many errors still exist in information systems for organizations, professional companies like CEPO are needed for testing information systems on their fit to the organization. To do so, one usually applies a testing framework. The existing (CEPO-way) framework is the result of ten years of experience. The DEMO methodology (Dietz [1]) is a methodology that has proven itself successful in modelling organizations. DEMO is a powerful tool for identifying all important transactions of an organization (as well as communication with external actors). From this point of view, it could be possible to use DEMO as an aid to check the completeness of an information system, i.e. whether it covers the essential business processes. Note that the coverage need not be full; in particular for small and medium-sized enterprises it may be partial. The existing CEPO-way framework is based on the DEMO methodology, but on only one model. In this study two models were added. The new, so-called DEMO-way, framework was discussed and one test case was used to demonstrate the added value. The new framework is supported by a tool that was built by the author, DEMO-way Script Creator (DSC tool). This tool is a valuable addition to the derivation of testing scripts, because the process model as well as the state model can be placed into the scripts with little effort. Several criteria were determined at the start of this study in order to evaluate the use of extra DEMO models in the framework: development time, walkthrough time, understandability, reproduction possibilities and lacking functionality / error detection. Ultimately, the DEMO-way scored better for many of these criteria, especially the detection of lacking functionality / errors in information systems. Although the DEMO testing script encompasses more testing instructions than the CEPO testing script, the testers did not spend more time walking through the scripts, due to more detailed navigation. Therefore, the recommendation is to start using the two extra DEMO models in combination with DSC tool. Subject testinginformation systemsprocess modelling To reference this document use: http://resolver.tudelft.nl/uuid:8c63437d-ada3-4d67-8a51-b17fc4608efb Publisher TU Delft, Electrical Engineering, Mathematics, Computer Science, Computer Science Part of collection Student theses Document type master thesis Rights (c) (C)2008 L.J. Metz Files PDF ewi_metz_2008.pdf 2.39 MB Close viewer /islandora/object/uuid:8c63437d-ada3-4d67-8a51-b17fc4608efb/datastream/OBJ/view