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The offices of GMD-FOKUS in Berlin provided the venue for a meeting in December 1987 which signalled the birth of the ARGOSI project. The proposal gradually took shape over the following months, and after merging with another project proposal in the field of standardization of computer graphics, finally received funding from the Esprit programme in March 1989. The project stemmed from a recognition of the importance of computer graphics a'i an ena bling technology in many application areas, and of the need to build bridges between computer graphics and telecommunications. The overall aims of the pro ject were twofold: - Advance the state of the art in the transfer of graphical information across international networks. - Improve quality and applicability of standards in this area. This book records the key results of the project and the contributions the project has made to standardization related to the transfer of graphical information across open networks. Contributions have included a demonstration of a prototype appli cation - a road transport information system running over public international of a new data networks - shown at the Esprit '91 exhibition, the standardization FT AM document type allowing structured access to graphical information (represented according to the Computer Graphics Metafile (CGM) standard) and major contributions to a mapping of the X-Windows protocol onto an OSI stack. The project also organized two international workshops. the first on Graphics and Communications, and the second on Distributed Window Systems.
List of contents
1 Overview of Project.- 1.1 Introduction.- 1.2 Initial Objectives.- 1.3 Related Work.- 2 Classification.- 2.1 Overview.- 2.2 Results of Data Collection.- 2.3 A Taxonomy for Application Classification.- 2.4 Examples of Using the Taxonomy Framework.- 2.5 Conclusions.- 3 Network Connectivity Study.- 3.1 Introduction.- 3.2 Networking Requirements of the Application Prototype.- 3.3 PSPDN Connections and Host Equipment at Partner Sites.- 3.4 Performance and Reliability of PSPDNs.- 3.5 Development of a Testing Regime.- 3.6 Results of Throughput and Reliability Tests.- 3.7 Conclusions.- 3.8 Recommendations Concerning the Application Prototype.- 4 Standardization Activities.- 4.1 Standards.- 4.2 CGM and FTAM.- 4.3 ASN.1 Notation for CGM.- 4.4 Mapping of the X Window System onto an OSI stack.- 5 The ARGOSI Demonstrator.- 5.1 The Demonstrator Scenario.- 5.2 The User's View.- 5.3 Architecture of the Application.- 5.4 OSI Services.- 5.5 Graphics Services.- 5.6 GDF to CGM Format Converter.- 5.7 How did the Prototype Application Meet the Aims?.- 5.8 Conclusions.- 6 The ARGOSI Workshops.- 6.1 Graphics and Communications.- 6.2 Distributed Window Systems.- 7 Evaluation of the Project.- 7.1 Demonstration at the 1991 ESPRIT Exhibition in Brussels.- 7.2 Dissemination of Results.- 7.3 Contribution to Workshops and Conferences.- 7.4 Summary of Achievements.- Appendix 1-Summaries of Throughput Results.- Appendix 2-Call Failures.- Appendix 3-ASN.1 Notation for CGM Subset.- Appendix 4-Contributors to the Project Work.- Appendix 5-Publications and Contributions.
