In order to develop an easy to use, effective and efficient software system that satisfies the stakeholder needs, usability attributes should be addressed and measured appropriately during all development stages. However, measuring usability is widely recognized as the most challenging task for the system development team. Such challenge can be attributed to the absence of an existing comprehensive usability model that covers all the fuzzy usability attributes. This paper aims to elicit and analyze usability attributes from previously existing usability models for developing an integrated usability model from different practitioners’…