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This paper describes an alternative approach to software architecture, where the classical division of responsibilities between operating systems, programming languages and compilers, and so forth is revised. Our alternative is organized as a set of self-contained <italic>environments</italic> which are able to communicate pieces of software between them,… (More)
The Linköping Office Information System (LOIS) is an integrated system of facilities for text preparation, data base management, communication by computer, and miscellaneous other services. It is an experimental research system, which is used by researchers and secretaries in our own research group.
The SCREEN system is an experimental tool for development and maintenance of application software. It is organized as a System of Communicating REsidential ENvironments, where each environment may be e.g. a programming environment or an end-user environment. Environments are able to send and receive modules which contain programs and data, and the… (More)