A Business Language

The paper describes a language and supporting interactive system for use by the small businessman. To help the businessman-user understand and apply an application program expressed in the language, he can watch the application run in a single-step mode. If tailoring of the application program is necessary, the system guides the user by diagnosing inconsistencies in the modified program. The user controls production processing from the same user interface. In the first part of the paper, the language is described. Next some example user sessions are outlined. Finally the prototype implementation and some design issues are discussed.