Modeling and evaluating credibility of web applications.

The popularization of the Web has given rise to new services every day, demanding mechanisms to ensure the credibility of these services. In this work we adopt a framework for the design, implementation and evaluation of credibility models. We call a credibility model a function capable of assigning a credibility value to a transaction of a Web application, considering different criteria of this service and its supplier. To validate this framework and models, we perform experiments using an actual dataset, from which we evaluated different credibility models using distinct types of information. The obtained results are very good, showing representative gains, when compared to a baseline and also to a known state-of-the-art approach. The results show that the credibility framework can be used to enforce trust to users of services on the Web.