ISSN:
1573-8337
Source:
Springer Online Journal Archives 1860-2000
Topics:
Computer Science
Notes:
Conclusions ERA and β-calculus are relational languages of data processing. Obviously, some mathematical training is necessary to solve problems in such languages. These languages are unacceptable for lay users. On the other hand, ERA and β-calculus can provide a mathematical basis for developing procedural and declarative data processing languages convenient, for use. In particular, ERA has served as the basis for developing a psychologically convenient language Ryaod [8, 9] by the Institute of Cybernetics of the Academy of Sciences of the Ukrainian SSR and the Ukrainian Institute of Psychology, intended for data processing on computer by lay users. The Ryaod language is convenient in description of data processing problems, user formulation of the solution process, planning and execution of solutions, process control, and man-machine commication. The aggregate units of language operators and the linearity of the Ryaod program facilitate program adjustment and accelerate software development. The psychologically convenient language Dnepr [10] is based on β-calculus. The language is intended for performance of untypical data processing functions with the use of a data base. Dnepr is more effective for such tasks than Ryaod because data descriptions are not included in the application program, the language sentences are more compact, and the language which is oriented for operation with a video display can be learned faster. Compared with the other existing relational languages, Ryaod and Dnepr have a larger inventory of functional and service tools.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01071610
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