Temat: quality model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analytical modelling operation processes of composed and integrated information systems on the principles of system engineering
Autorzy:: Kostogryzov, A.
Stepanov, P.
Nistratov, A.
Nistratov, G.
Zubarev, I.
Grigoriev, L.
Powiązania:: https://bibliotekanauki.pl/articles/2069182.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: information
model
probability
quality
risk
safety
system
technology
Opis:: The approach for analytical modelling operation processes of composed and integrated information systems is proposed. It allows to estimate the reliability and timeliness of information producing, the completeness, validity and confidentiality of the used information from users’ point of view. In application to composed and integrated systems the existing models are developed by introducing the space of elementary events for operation processes from system engineering point of view. It is intended for systems analysts for any IS. Some effects are demonstrated by examples.
Źródło:: Journal of Polish Safety and Reliability Association; 2016, 7, 1; 157--166
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: About accuracy of risks prediction and importance of increasing adequacy of used probabilistic models
Autorzy:: Kostogryzov, A.
Nistratov, A.
Zubarev, I.
Stepanov, P.
Grigoriev, L.
Powiązania:: https://bibliotekanauki.pl/articles/2069120.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: model
optimization
probability
quality
resources
risk
system
technology
Opis:: The work purpose is the quantitative proof of importance and necessity of increasing adequacy of probabilistic models, described by probability distribution functions (PDF) of time between losses of system integrity. For purpose achievement the analysis of probabilistic metrics of risks and the elementary forms to establish an admissible risks is carried out, some ways of increasing an adequacy of probabilistic models for complex structures are described. Possibilities of extracting the latent knowledge from an adequate PDF are shown. Practical value of the researches are the revealed possibilities for a substantiation of more effective system decisions at the expense of increasing accuracy of risks prediction. Effects are demonstrated by examples.
Źródło:: Journal of Polish Safety and Reliability Association; 2015, 6, 2; 71--80
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Fuzzy quality analysis of web services implemented in virtualised environment
Autorzy:: Walkowiak, T.
Powiązania:: https://bibliotekanauki.pl/articles/2069094.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: virtualization
web service
quality
availability
state-transitional model
fuzzy number
Opis:: The paper describes the quality analysis of web services implemented in virtualised environment. It takes into account the reliability and performance aspects of software and hardware elements of the web service. The presented state-transitional model considers the reconfiguration process to maintain the continuity of business services. The reconfiguration is based in on the redeployment of virtual machines so for some time the system operates in a degraded state. Author propose two quality measures based on the web service availability and maximum handled requests calculated at each of degradation levels. Moreover, authors proposed to model the web service reliability parameters by fuzzy numbers. A method for calculating fuzzy membership functions of quality measures are also presented.
Źródło:: Journal of Polish Safety and Reliability Association; 2015, 6, 2; 147--152
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: The systemic approach, based on the risks analysis and optimization, to research variants for developing hydrocarbon deposits of Arctic regions
Autorzy:: Grigoriev, L.
Guseinov, Ch.
Kershenbaum, V.
Kostogryzov, A.
Powiązania:: https://bibliotekanauki.pl/articles/2069470.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: analysis
Arctic regions
hydrocarbons
model
optimization
probability
quality
resources
risk
technology
Opis:: The original methodological approach based on the risks analysis and optimization is proposed to research variants for developing hydrocarbon deposits of Arctic regions. The basic analytical problems that are due to be solved by probabilistic modelling of processes are formulated. Input and otput allow to research different variants for developing hydrocarbon deposits of Arctic regions. Some effects are demonstrated by example.
Źródło:: Journal of Polish Safety and Reliability Association; 2014, 5, 1; 71--78
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Applicable technologies to forecast, analyze and optimize reliability and risks for complex systems
Autorzy:: Kostogryzov, A.
Nistratov, G.
Nistratov, A.
Powiązania:: https://bibliotekanauki.pl/articles/2069444.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: analysis
forecasting
model
quality
reliability
risk
safety
software tools
system engineering
technology
Opis:: The paper is concerned with the application of the original mathematical models and supporting them software technologies to forecast, analyze and optimize reliability and risks for complex systems (system is defined as a combination of interacting elements organized to achieve one or more stated purposes). Functionality and usability to analyze information system processes and standard processes in system life cycle are presented. Rational use of the proposed results allows to go «from a pragmatical filtration of information to generation of the proved ideas and effective decisions». Effects are demonstrated by examples.
Źródło:: Journal of Polish Safety and Reliability Association; 2012, 3, 1; 1--14
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

Artykuł

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