Evaluation of Web Accessibility Tools.

A model-driven framework to integrate Communication Analysis and OO-Method: Supporting the model transformation

Eduardo Hideki TanakaHeloisa Vieira da Rocha

Marcela RuizSergio EspañaÓscar PastorArturo González

There are several accessibility evaluation tools, with different features, which may help a lot when evaluating Web accessibility. However, few data exist about what evaluators think about these features and if these tools are easy or difficult to use. Moreover, there is not so much information about the usage of these tools by inexperienced accessibility evaluators and their opinions when checking guidelines conformance to evaluate Web accessibility. Thus, this paper presents some findings of user tests done in order to evaluate four Web accessibility tools. Models are now part of an increasing number of engineering processes. However, in most cases, they are confined to a simple documentation role instead of being actively integrated into the engineering process. The model-driven development approach considers models as first-class entities and also considers tools, repositories, etc. as models. In order to take full advantage of these ideas, model transformation emerges as a main activity. Model transformation aims at supporting the production of target models from a number of source models. Following the model-driven development paradigm, we propose a model-driven framework to integrate Communication Analysis (a communication- oriented business process modelling and requirements method) and OO-Method (an object-oriented model-driven development method). This integration framework is composed of two stages: diagramming support and transformation support. This paper describes the second stage (the first stage was described in previous works). Phases, tasks, technological support and examples are presented. Finally, we conclude with an analysis and discussions about lessons learned and an evaluation proposal to assess the usability of the transformation module.

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