Pp. 265-272 in Systems Architecture, Proc. 6th European Regional Conf., ICS 81. Guildford, England: Westbury House, 1981.
The report describes the author's work on establishing detailed information about the realities of the program construction process and of the characteristics of application programs, by studies that pay attention to the minute details of selected particular cases. The studies indicate the importance of program supports consisting of intuitively convincing explanations covering all details and of descriptions of many forms, selected individually for each program. As an example of such a form, a program extract, so-called program skeleton, is demonstrated.