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Article type: Research Article
Authors: Winkowski, Józef
Affiliations: Institute of Computer Science, Polish Academy of Sciences
Abstract: In the paper a formalism is suggested for describing non-sequential processes. Processes are defined in this formalism by finite sets of rules. Such sets, called algorithms, consist of rules which indicate how relations between occurring objects may change (in general concurrently). They constitute a language of algorithms. Mathematical semantics of two types are formulated for this language. Ones, called objective, give descriptions of executions of algorithms in terms of objects which really exist in these executions. Other, called subjective, offer descriptions from the point of view of an observer. It is shown that objective semantics can be modelled in subjective ones.
Keywords: algorithm, execution, objective semantics, subjective semantics
DOI: 10.3233/FI-1978-2109
Journal: Fundamenta Informaticae, vol. 2, no. 1, pp. 129-139, 1978
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