Visual Structure Language | Zendy

Philip Campbell | Zendy; JUAN ESPINOZA | Zendy

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Visual Structure Language

Author(s) -

Philip Campbell,

JUAN ESPINOZA

Publication year - 2001

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/789522

Subject(s) - computer science , programming language , nesting (process) , programmer , control flow , hierarchy , code (set theory) , control (management) , artificial intelligence , engineering , set (abstract data type) , mechanical engineering , economics , market economy

In this paper we describe a new language, Visual Structure Language (VSL), designed to describe the structure of a program and explain its pieces. This new language is built on top of a general-purpose language, such as C. The language consists of three extensions: explanations, nesting, and arcs. Explanations are comments explicitly associated with code segments. These explanations can be nested. And arcs can be inserted between explanations to show data- or control-flow. The value of VSL is that it enables a developer to better control a code. The developer can represent the structure via nested explanations, using arcs to indicate the flow of data and control. The explanations provide a ''second opinion'' about the code so that at any level, the developer can confirm that the code operates as it is intended to do. We believe that VSL enables a programmer to use in a computer language the same model--a hierarchy of components--that they use in their heads when they conceptualize systems

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