Russian Federation
This paper examines the properties of a program at various stages of development, as defined by the author's form-content concept of its representations. The concept centers on viewing a program through the dichotomy of its form, as an external description in a given language or notation, and its content, which defines its internal logic or functionality. While the content remains invariant during development, it evolves from human-oriented to machine-oriented in form. The following representations are identified and described: idea, conceptual model, architecture, algorithms, source code, abstract syntax tree, assembler code, and machine code. The measurable property of a program is the information volume of a representation, corresponding to the size of the form used to describe the program. A method for calculating such volume and a formalized notation are provided for each representation. The main ways to refine the methods for calculating the volume are indicated, and avenues for further research development are offered.
program, characteristics, form, content, information volume, calculation method
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