A Methodology for Evaluating Quality and Functional Size of Operative WebApps

The building of Web-based systems has often been ad hoc, lacking systematic development approaches, and quality control and assurance processes. In order to avoid the Web crisis, urge Web Engineering approaches for eliciting, developing and maintaining Web sites and Applications (WebApps) of required quality within budgetary constrains. To bridge this gap, one of our current concerns is assessing the quality of operative WebApps considering both functional and nonfunctional requirements. We claim that an operative site should be assessed not only from the quality perspective of the nonfunctional requirements, but also from the functional viewpoint like informational and navigational architecture. WebFP_QEM is a methodology that allows capturing business and application goals for different audiences, specifying informational and navigational models, specifying quality models and assessment criteria, and analyzing outcomes in order to give recommendations for improvements. Furthermore, if a change is suggested based on a recommendation document, the estimation of the maintenance cost can be done using a Web-centered Function Points measure.