Authors
Efremov A.
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Degree
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PhD in Physics and Mathematics, Associate Professor, St. Petersburg Polytechnic University of Peter the Great |
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Location
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Saint Petersburg |
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Articles
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Classification of information technologiesInformation technology (IT) is a set of methods, processes, tools and hardware that provide for
the decision makers in the various fields of activity the ability to access any required information.
Currently, there is no established classification IT. A variety of technologies are studied in different
disciplines. At the same time, in order to help to navigate the variety of information technologies they
need to be ordered in some way. This paper offers a multi-level classification of the IT based on the
allocation to strata from the bottom up techniques, tools and equipment to the work with information
depending on their degree of complexity — from the means of communication human with a
computer, collection, storage, retrieval, different ways of processing information to the IT for extract
the knowledge and to the emergence of new information as a result of the complex methods. The
paper uses the information models of F. E. Temnikov and A. A. Denisov to describe the principles
of the proposed classification. The hierarchical structure of the IT in this paper is presented within
two levels of itemization — a general one which comprises the whole specter of the existing IT and
a detailed one which consists of the second level technologies that are specific for every particular
general technology branch.
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Contribution of school «System analysis in engineering and control» in the development of informatics, information systems and technologies
This article describes the main contribution of the school «System Analysis in Engineeromg and
Control» to the development of informatics, the theory of information systems and technologies. The
following results are briefly characterized: clarification of the notion of «information», the application
of the definition of a system, which based on the system-target approach, to justify the multilevel
structure of the information complex; the proposed classifications of information systems and technologies,
the concept of virtual information system.
The state of development of the theory of information systems and processes is analyzed. It is concluded
that further research is needed on the development of the structure, patterns and principles of
the creation and organization of the functioning of information systems based on the use of information
technologies of the third and fourth industrial revolutions, improving the methods of information
retrieval based on the semantic analysis of textual information on the basis of mathematical logic and
mathematical linguistics in order to increase relevance.
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