iota is an actively used programming language created in 1985. A highly interactive programming system is presented which supports hierarchical and modular program development with abstraction mechanisms. By taking advantage of abstraction mechanisms, the system provides a "truly modular" environment, in which modules are constructed, debugged, verified, and compiled in a module-by-module fashion. Such an environment naturally requires system management of the information concerning ongoing program development, in the form of module databases. As a result, further problems arise as to how to modify the information in efficient and consistent ways. This paper discusses design objectives for modular programming systems by focusing on such issues as information management, interactive construction and modification of modules, separate processing, specification and verification, and supports for cooperative program development.

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  • iota first appeared in 1985
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Last updated August 9th, 2020

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