ABSTRACT This paper addresses the issue of user-centric quality assessments of webbased systems, and proposes an assessment model for quality evaluations by focusing on metrics based on the perspective of end-users. The model includes an approach which scales quantifiable values of quality attributes based on importance of users’ perception. The assessment model is applicable to subjective quality attributes whereas the scaling technique can be ported to a range of assessment models. Because the model is based on subjective metrics, it should be used in conjunction with objective models, particularly those which return quantifiable values for quality ratings. The approach is flexible enough for end-users to tune the model according to their requirements. The web designer can also use this approach to assess the users’ related quality attributes of the system.
