Open Access

ARTICLE

Computational Assessment of Information System Reliability Using Hybrid MCDM Models

Nurbek Sissenov^1,*, Gulden Ulyukova^1,*, Dina Satybaldina², Nikolaj Goranin³

1 Department of Information Security, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
2 Research Institute of Information Security and Cryptology, L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
3 Department of Information Systems, Vilnius Gediminas Technical University, Vilnius, Lithuania

* Corresponding Authors: Nurbek Sissenov. Email: ; Gulden Ulyukova. Email:

(This article belongs to the Special Issue: Software, Algorithms and Automation for Industrial, Societal and Technological Sustainable Development)

Computers, Materials & Continua 2026, 87(2), 76 https://doi.org/10.32604/cmc.2026.075504

Received 03 November 2025; Accepted 12 January 2026; Issue published 12 March 2026

Abstract

The reliability of information systems (IS) is a key factor in the sustainable operation of modern digital services. However, existing assessment methods remain fragmented and are often limited to individual indicators or expert judgments. This paper proposes a hybrid methodology for a comprehensive assessment of IS reliability based on the integration of the international standard ISO/IEC 25010:2023, multicriteria analysis methods (ARAS, CoCoSo, and TOPSIS), and the XGBoost machine learning algorithm for missing data imputation. The structure of the ISO/IEC 25010 standard is used to formalize reliability criteria and subcriteria, while the AHP method allows for the calculation of their weighting coefficients based on expert assessments. The XGBoost algorithm ensures the correct filling of gaps in the source data, increasing the completeness and reliability of the subsequent assessment. The resulting weighted indicators are aggregated using three MCDM methods, after which an integral reliability indicator is formed as a percentage. The methodology was tested on six real-world information systems with different architectures. The results demonstrated high consistency between the ARAS, CoCoSo, and TOPSIS methods, as well as the stability of the final rating when the criterion weights vary by ±10%. The proposed approach provides a reproducible, transparent, and objective assessment of information system reliability and can be used to identify system bottlenecks, make modernization decisions, and manage the quality of digital infrastructure.

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Keywords

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