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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">ntv</journal-id><journal-title-group><journal-title xml:lang="ru">Научно-технический вестник информационных технологий, механики и оптики</journal-title><trans-title-group xml:lang="en"><trans-title>Scientific and Technical Journal of Information Technologies, Mechanics and Optics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-1494</issn><issn pub-type="epub">2500-0373</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2226-1494-2026-26-2-349-356</article-id><article-id custom-type="elpub" pub-id-type="custom">ntv-597</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КОМПЬЮТЕРНЫЕ СИСТЕМЫ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>COMPUTER SCIENCE</subject></subj-group></article-categories><title-group><article-title>Моделирование и оптимизация информационных потоков электронного документооборота в условиях угроз информационной безопасности</article-title><trans-title-group xml:lang="en"><trans-title>Modeling and optimization of information flows in electronic document management systems under information security threats</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-4037-291X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шеховцова</surname><given-names>И. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Shekhovtsova</surname><given-names>I. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шеховцова Ирина Романовна — аспирант</p><p>Санкт-Петербург, 197101</p></bio><bio xml:lang="en"><p>Irina R. Shekhovtsova — PhD Student</p><p>Petersburg, 197101</p></bio><email xlink:type="simple">irshekhovtsova@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6711-6399</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бессмертный</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bessmertny</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бессмертный Игорь Александрович — доктор технических наук, профессор</p><p>Санкт-Петербург, 197101</p><p>sc 36661767800</p></bio><bio xml:lang="en"><p>Igor A. Bessmertny — D.Sc., Full Professor</p><p>Petersburg, 197101</p><p>sc 36661767800</p></bio><email xlink:type="simple">bessmertny@itmo.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-6588-6338</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Степин</surname><given-names>Ю. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Stepin</surname><given-names>Y. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Степин Юрий Петрович — доктор технических наук, профессор</p><p>Москва, 119296</p><p>sc 57212574631</p></bio><bio xml:lang="en"><p>Yurii P. Stepin — D.Sc., Professor</p><p>Moscow, 119296</p><p>sc 57212574631</p></bio><email xlink:type="simple">stepin.y@gubkin.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>ITMO University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>РГУ нефти и газа (НИУ) им. И.М. Губкина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Gubkin University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>20</day><month>04</month><year>2026</year></pub-date><volume>26</volume><issue>2</issue><fpage>349</fpage><lpage>356</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шеховцова И.Р., Бессмертный И.А., Степин Ю.П., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Шеховцова И.Р., Бессмертный И.А., Степин Ю.П.</copyright-holder><copyright-holder xml:lang="en">Shekhovtsova I.R., Bessmertny I.A., Stepin Y.P.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://ntv.elpub.ru/jour/article/view/597">https://ntv.elpub.ru/jour/article/view/597</self-uri><abstract><p>Введение. Внедрение различных систем электронного документооборота требует принятия мер их защиты от реализации угроз информационной безопасности, которые могут привести к операционным сбоям, финансовым потерям, срыву планов и ущербу деловой репутации. Предложено решение повышения уровня защищенности информационных потоков в системах электронного документооборота корпоративного сектора от угроз блокирования информации, инициированных внутренними пользователями. Метод. Представлена система взаимосвязанных математических моделей, составляющих концептуальную основу цифрового двойника, для анализа текущего состояния информационных потоков в системе электронного документооборота. Разработанный подход позволяет количественно оценить влияние последствий нарушения пользователями регламентов по обработке электронных документов на бизнес-процессы. Основные результаты. На основе результатов моделирования сформулированы и решены оптимизационные задачи по выработке стратегий управления движением информационных потоков в условиях неопределенности. Обсуждение. Полученные результаты создают объективную основу для формирования конкретных рекомендаций по улучшению процессов документооборота в аспектах информационной безопасности.</p></abstract><trans-abstract xml:lang="en"><p>The implementation of various electronic document management systems necessitates protective measures against information security threats, which can lead to operational failures, financial losses, disruption of plans, and damage to business reputation. In this regard, the objective of the study is to enhance the security level of information flows in corporate sector electronic document management systems against information blocking threats initiated by internal users. To achieve this objective, a system of interconnected mathematical models is proposed, forming the conceptual foundation of a digital twin for analyzing the current state of information flows in the electronic document management system. The developed approach enables quantitative assessment of the impact of users’ violations of electronic document processing regulations on business processes. Based on the modeling results, optimization problems have been formulated and solved to develop strategies for managing information flow movement under conditions of uncertainty. The obtained results establish an objective foundation for formulating specific recommendations to improve document management processes with respect to information security aspects.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>информационный поток</kwd><kwd>марковский процесс</kwd><kwd>риск</kwd><kwd>система электронного документооборота</kwd><kwd>дисперсионный анализ</kwd><kwd>доступность</kwd><kwd>блокирование информации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>information flow</kwd><kwd>Markov process</kwd><kwd>risk</kwd><kwd>electronic document management system</kwd><kwd>analysis of variance</kwd><kwd>availability</kwd><kwd>information blocking</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Лившиц И.И., Степин Ю.П., Соколов Е.О., Шеховцова И.Р. 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