ROSIE is a programming system designed to support the development of expert systems and other heuristic programming applications. ROSIE offers great promise because it combines many modern capabilities within a single system, including English as a programming language; knowledge representation capabilities; a built-in relational database system; flexible string matching and communication capabilities; highly modular programming structures; a file package and interactive programming environment. This Note describes in detail the features of the ROSIE environment, and the syntax and semantics of the ROSIE language. The Reference Manual should be useful to readers who intend to program in ROSIE or who are interested in the implementational details of the ROSIE system.
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