Catálogo de publicaciones - libros

In some working environments users experience a high level of mobility while requiring collaborating and coordinating their activities with colleagues involving the exchange and analysis of documents distributed in space or time. Medical workers stand out among others by the demands imposed by hospital work. These new forms of interaction pose new challenges for the design of pervasive computing environments aimed at seamlessly integrating heterogeneous devices. Based on workplace studies conducted in a hospital, we designed and implemented a mobile collaborative system aimed at supporting co-located collaboration, proximity-based application-sharing, and the remote control of heterogeneous devices. The results of a preliminary evaluation show that users perceive the services provided by the application to be useful and efficient, even though the manipulation of the remote display through the PDA was less efficient than with the keyboard and mouse.

The fast expansion of wireless networks and mobile devices enables portable devices to join collaborative graphics design conveniently. The limitation of display size and computational power of these embedded devices makes it hard for mobile users to browse large pattern that renewed in real time efficiently. We present a novel user interest region prediction algorithm to forecast user’s intention in the near future. Related experiment was carried out to test the effectiveness of the algorithm. Results show that the algorithm can well predict mobile user’s interest regions. Based on the prediction, only sub-patterns and operations that might be interested to user are issued to the embedded sites. User study results indicate that the proposed approach is effective and the feasibility of the collaborative graphics design system in ubiquitous environment is enhanced.

In the last years the production of systems supporting learning and work in-group has been high. However, the design and development of this kind of systems is difficult, especially due to the multidisciplinarity involved. We propose a design and development process of the presentation layer. This process is based on the use of several models for representing collaborative and interactive aspects of this kind of systems. In this process several techniques and notations are used. In this paper we introduce our methodological approach and the conceptual framework on which our proposal is based.

The majority of existing web based learning platforms does not offer a flexible way to design learning environments They support only a fixed or restricted view on the execution of learning processes. Furthermore, the adaptation and tailoring of learning environments by end-users is rarely supporting different learning scenarios and processes. Both, design and tailoring are usually supported as activities of individual users. In order to support collaborative design and tailoring, a collaborative process was developed and implemented prototypically in the collaborative learning platform CURE. The process supports collection and categorisation of existing designs as templates in a shared central repository, providing searching and rating mechanisms as well as awareness facilities to facilitate reuse of templates and to contribute to the extraction of First experiences show the advantages and expansion potentials of this approach. The applicability of the process and its portability to other platforms is discussed.