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How to visualize datasets hierarchically structured is a basic issue in information visualization. Compared to the common diagrams based on the nodes-links paradigm (e.g. trees), the enclosure-based methods have shown high potential to represent simultaneously the structure of the hierarchy and the weight of nodes. In addition, these methods often support(More)
This paper proposes a method based on composite indexes to reflect the level of computer–supported cooperative activity. This approach is innovative in the sense that it extends ap urely quantitative approach with some qualitative contextual elements. Indeed, the indexes integrate two basic features of the computer-supported interactions within a group: the(More)
This paper shows how Model Driven Engineering (MDE) and Business Process Management (BPM) can be combined when generating executable BPEL processes out of BPMN models. By adding appropriate meta-data information to the BPMN models, business patterns like model fragments or reference process building blocks and technical patterns are applied during the BPMN(More)
This paper discusses the early results of the multidisciplinary project TIVIPOL aiming to propose digital technologies to enhance the social life of older people in a retirement home. A prototype combining a tactile color screen, a RFID reader and a ticket printer is described. It allows the older people to manage their participation to the social(More)