A graphics-based programming-support system

A programming support system using extended Nassi-Shneiderman diagrams (NSD) is described. The aim of the work is to develop techniques for improving the quality and cost of specifying, documenting and producing computer programs. NSD's can be executed interpretively or compiled to produce running code. The system implementation has begun and charts can be drawn on a variety of display devices. The system is being developed using the Picture Building System developed earlier.

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