Early requirement analysis for cloud based decisionsupport system: A case of building informationmodelling software selection

The existence of Building Information Modelling (BIM) has reshaping the way of construction process and effectively increase collaboration and communication among the stakeholder, reduce cost and time and increase the quality of the project outcome.Due to this, numerous of BIM software has been developed to cater the need from industry players.Each of these software offers different function, features and cost. Moreover, the adoption of BIM involves a high investment in term of software, hardware and training.Thus, we developed a DSS namely topsis4BIM as a decision support tool in order to assist decision makers for BIM software selection.A decision model of Fuzzy TOPSIS for BIM software selection was developed based on attributes and alternative that has been identified through case study and validated by BIM expert. Furthermore, this study has introduced a new architecture of DSS development through the current Web technology such as Web 2.0 and cloud computing.