Browsing by Author "Peterson, Murray"

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    ISSUES AND EXPERIENCES IN THE DESIGN OF A WINDOW MANAGEMENT SYSTEM
    (1986-09-01) Greenberg, Saul; Peterson, Murray; Witten, Ian
    Window systems underlie many successful human-computer interfaces. But constructing them involves several fundamental design issues which are resolved in various ways by different implementations. These affect both user's and programmer's interface, and include tiling vs overlapping windows; program vs user control of windows; techniques for coping with changeable window sizes; design of transient windows; low-level vs high-level tools for the programmer; local vs distributed control; and the role of a controlling window manager process. There is no broad consensus among designers as to how best to make such decisions. This paper illuminates the issues involved by surveying characteristics of window systems and discussing dominant design questions. The philosophy and implementation underlying the JADE window manager constructed at the University of Calgary is revealed, and the design is reevaluated from the perspective of three years' experience of using the system and programming within it.
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    JADE: a distributed software prototyping environment
    (1983-04-01) Witten, Ian H.; Birtwistle, Graham M.; Cleary, John; Hill, David R.; Levinson, Danny; Lomow, Greg; Neal, Radford; Peterson, Murray; Unger, Brian W; Wyvill, Brian
    The Jade research project is aimed at building an environment which comfortably supports the design, construction, and testing of distributed computer systems. This note is an informal project description which delimits the scope of the work and identifies the research problems which are tackled. Some design issues are discussed, and progress to date is described.
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    JADE: a simulation & software prototyping environment
    (1983-11-01) Unger, Brian W; Birtwistle, Graham; Cleary, John; Hill, David; Lomow, Greg; Neal, Radford; Peterson, Murray; Witten, Ian; Wyvill, Brian
    Jade provides an integrated set of tools which are designed to support the development of distributed software and systems. The Jade environment provides tools for the design, implementation, debugging, testing, maintenance, and performance analysis of distributed, concurrent programs. Novel features of Jade are that it is based on the modelling and simulation of target distributed systems and partially automatic program generation is supported. The goals of Jade are to provide a cost effective software development environment that is both easy and comfortable to use, and which can produce more reliable, maintainable programs. This paper presents an overview of the Jade environment, describes its major components, and outlines the status of the project.