Costin Pribeanu

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With the explosion of devices, computing platforms, contextual conditions, user interfaces become more confronted to a need to be adapted to multiple configurations of the context of use. In the past, many techniques were developed to perform a task analysis for obtaining a single user interface that is adapted for a single context of use. As this user(More)
Multiple versions and expressions of task models used in user interface design, specification, and verification of interactive systems have led to an ontological problem of identifying and understanding concepts which are similar or different across models. This variety raises a particular problem in model-based approaches for designing user interfaces as(More)
Despite the existing regulations and standards at national and international level, web content is still difficult to use, if not completely unusable, for visually impaired people. This paper presents the evaluation results for three municipal web sites. A combined method, based on conformance review and expert review, was employed. Overall, the results(More)
Traditionally, the Software Engineering community has been interested in defining methods and processes to develop software by specifying its data and behavior disregarding user interaction. On the other hand, the Human-Computer Interaction community has defined techniques oriented to the modeling of the interaction between the user and the system,(More)
The accessibility of public administration web sites is a key quality attribute for the successful implementation of the Information Society. The purpose of this paper is to present a second review of municipal web sites in Romania that is based on automated accessibility checking. A number of 60 web sites were evaluated against WCAG 2.0 recommendations.(More)
A pattern-based approach to user interface development is presented that is explicitly based on artifacts contained in a task and a domain models. Exploiting a task model or a domain model in isolation may lead to patterns that are not user-centered. By combining the exploitation of both models at the same time with priority lead to identifying interaction(More)
Formative usability evaluation aims at finding usability problems during the development process. The earlier these problems are identified, the less expensive to fix they are. This paper presents some preliminary results from a formative usability testing of the 1st prototype developed for the ARiSE (Augmented Reality in School Environments) project.(More)
Task-based design of user interfaces aims at supporting the design of usable interfaces by focusing on user’s goals and task performance. In this approach, the task model is given the leader role among other models that constrain the design. The objective of this paper is to take a closer look at the relation between task modelling and user interface design(More)