Companies and organisations produce, use and up-date digital records. We address in this paper the problem of sharing confidential digital records in-between autonomous partners. We propose a solution based on a hierarchy of servers and on XML messages following the Dublin Core recommandation. A prototype system for medical records exchange is presented. MOTS-CLÉS : dossier numérique, partage, ...

We present an algorithmic analog-to-digital converter (ADC) architecture for large-scale parallel quantization of internally analog variables in externally digital array processors. The converter quantizes and accumulates a binary weighted sequence of partial binary-binary matrix-vector products computed on the analog array, under presentation of bit-serial inputs in descending binary order. Th...

This paper develops an analytical model for the multiplexing of Asynchronous Transfer Mode (ATM) connections onto the Synchronous Digital Hierarchy (SDH) Virtual Containers over an unidirectional self-healing ring. The proposed algorithm can produce a near optimal solution in pseudo-polynomial time and may be used in the ATM management entity for the real time allocation of capacity to ATM conn...

This paper describes the study made to design and develop a digital library system able to manage the different types of information resources produced during a large-scale evaluation campaign and to support the different stages of it. In particular we present how the use of the Data, Information, Knowledge, and Wisdom (DIKW) hierarchy as a model helped us in the design of the user interface of...

This work presents some methods to improve visualization of a digital featured terrain. We used the wellknown billboard structure and applied approaches such as transparency technique and some view-dependent control like complex object culling and multi-resolution imaging. This work also builds a billboard hierarchy gathering into groups those ones with similar properties. In run-time, the appl...

Interactive Digital Television (IDTV) service providers have been looking for ways to maintain their competitive advantage in the marketplace. To do this, IDTV service providers need to carefully evaluate the drivers affecting their existing commercial operations and practices. Hence, this study was undertaken to investigate various adoption drivers for IDTV commerce. A combination of research ...

Advanced networking technologies offer opportunities for new and better PDIS. 1.0 The Information Hypeway and Reality ‘‘For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.’’ [4] The so-called ‘‘Information Highway’’ attracts a great deal of attention, and yet a precise definition eludes us. This tends to be the result of definitions of c...