David A. Duce - Böcker

This volume is a record of the Workshop on Graphics and Communications organized within ESPRIT II Project 2463 ARGOSI (Applications Related Graphics and OSI Standards Integration). The workshop was included in the Eurographics workshop programme for 1990. The ARGOSI project essentially arose from the observation that international standards in the graphics and networking areas were generally being developed in isolation and that insufficient attention was being paid to the needs of applications whose requirements spanned several standards. The importance of the integration of graphics and networking has been growing over recent years, with the growth of interest in multi-media systems to support cooperative working, and the use of computer graphics techniques in the visualization of the results of scientific and engineering computations. The latter frequently involve high-speed links between workstations and supercomputers. The presentations in this volume cover a broad range of activities from a classification scheme for graphics and networking to interconnection experiments with broadband networks. Three topics were selected for detailed discussion in working groups: - Improvements to the computer graphics metafile standard, - The role of application profiles in graphics data exchange, - The impact of multi-media. The volume contains a record of the discussions and the recommendations from the working groups, subsequently endorsed by the workshop.

This volume reports the results of ESPRIT project 2463 on Applications Related Graphics and OSI Standards Integration (ARGOSI), running from 1989 to 1992. The objectives of the project were to advance the state of the art in the transfer of graphical information across international networks and to improve the quality of standards In this area. The results of the project presented in this book include: a classification scheme for applications in terms of their requirements for graphics and networking services; an FTAM document type for CGM, which has been submitted for international standardization; contributions to the development of a mapping of the X Windows protocol onto an OSI stack; contributions to the development of an ASI.1 notation for CGM and issues associated with the generation of CGM encodings for this; experience of using CGM and PTAM for a prototype application running over public data networks. The book reports practical experience of an approach to the design and implementation of distributed applications using graphics and networking services in combination.

This volume is a record of the Workshop on Window Management held at the Ruth­ erford Appleton Laboratory's Cosener's House between 29 April and 1 May 1985. The main impetus for the Workshop came from the Alvey Programme's Man­ Machine Interface Director who was concerned at the lack of a formal definition of window management and the lack of focus for research activities in this area. Win­ dow Management per se is not the complete problem in understanding interaction. However, the appearance of bitmap displays from a variety of vendors enabling an operator to work simultaneously with a number of applications on a single display has focussed attention on what the overall architecture for such a system should be and also on what the interfaces to both the application and operator should be. The format of the Workshop was to spend the first day with presentations from a number of invited speakers. The aim was to get the participants aware of the current state of the art and to highlight the main outstanding issues. The second day consisted of the Workshop participants splitting into three groups and discussing specific issues in depth. Plenary sessions helped to keep the individual groups work­ ing on similar lines. The third day concentrated on the individual groups presenting their results and interacting with the other groups to identify main areas of con­ sensus and also a framework for future work.