Academic operations research programs structured on a user command language

Twelve deterministic and probabilistic Operations Research BASIC computer programs, useful in academic and research environments, are described. All accept identical conversational instructions in a unified user command language. Each program has help and examples messages, and built-in sets of data useful for illustration. It accepts commands for retrieving, displaying, changing, and saving the data, and for computing and optimization. Three programs also accept simulation commands. The availability of the source code and detailed documentation allows users to modify the programs, delete or add algorithms, change dimensions, and to translate the programs into other languages.