Вісники НТУ "ХПІ"
Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/2494
З 1961 р. у ХПІ видається збірник наукових праць "Вісник Харківського політехнічного інституту".
Згідно до наказу ректора № 158-1 від 07.05.2001 року "Про упорядкування видання вісника НТУ "ХПІ", збірник був перейменований у Вісник Національного Технічного Університету "ХПІ".
Вісник Національного технічного університету "Харківський політехнічний інститут" включено до переліку спеціалізованих видань ВАК України і виходить по серіях, що відображають наукові напрямки діяльності вчених університету та потенційних здобувачів вчених ступенів та звань.
Зараз налічується 30 діючих тематичних редколегій. Вісник друкує статті як співробітників НТУ "ХПІ", так і статті авторів інших наукових закладів України та зарубіжжя, які представлені у даному розділі.
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Публікація A software tool for quality measurement of business process models using dfistances in n-dimensional space(Національний технічний університет "Харківський політехнічний інститут", 2022) Kopp, Andrii Mykhailovych; Orlovskyi, Dmytro LeonidovychThis paper considers the problem of quality measurement of business process models using the n-dimensional space distances. Business process models are graphical schemes similar to flowcharts or activity diagrams utilized in software engineering, usually represented using the BPMN (Business Process Model and Notation) or EPC (Event-driven Process Chain) notations. Business process modeling aims to capture current enterprise workflows for their analysis and then improvement using automation through IT (Information Technology) systems deployment. Therefore, designed business process models should be of high quality, so all “weak spots” of described organizational workflows could be properly identified and replaced with more efficient solutions. Whereas process models, which are not understandable, un-structured, and/or uncertain, may cause even more issues when used to improve organizational activities. Therefore, this study proposes quality measures and a software tool that can be used to detect errors in BPMN and EPC business process models using distances in n-dimensional space. The formal problem statement based on the graph-based description of business process models was given. Business process model quality characteristics and measures that consider features of both BPMN and EPC notations were proposed. Distances in n-dimensional space were suggested for usage to measure the quality of business process models. The algorithm for business process model quality measurement was proposed. The software tool to measure the quality of BPMN and EPC business process models was designed and developed. The quality of sample business process models was measured using the software tool. Obtained results were analyzed and discussed. This paper considers the Euclidean distance only, while other existing n-dimensional space distance measures or, on the opposite, similarity measures, can be used to evaluate business process model quality in further research.Публікація The approach and the software tool to calculate semantic quality measures of business process models(Національний технічний університет "Харківський політехнічний інститут", 2022) Kopp, Andrii Mykhailovych; Orlovskyi, Dmytro LeonidovychBusiness process models are essential business process management artifacts that help describe visually ongoing business activities to facilitate communication between information technology and business stakeholders. Business process models are used to find inefficient spots within described workflows and resolve detected shortcomings by automation via configurable software solutions or unified workflow engines. However, this is impossible when using syntactically or semantically poor business process models. It is the same as building a house using the blueprint with windows on the floor and typos in text labels. Therefore, it is extremely important to keep created business process models clear and relevant to the actual workflows they describe. Hence, in this paper, we propose the approach and the software tool to calculate semantic quality measures of business process models. The proposed approach uses a special procedure to extract the modeling domain statements using natural language processing techniques. According to the proposed approach, the initial textual descriptions of business process models should be tokenized. Then obtained tokens should be turned to the lower case style and cleansed to remove non-alphabetic tokens and stop words. Finally, the remaining tokens should be stemmed and the existing duplicates should be removed. The same procedure is then repeated for text labels attached to the business process model activities. Then, tokens present in the result of textual description’s processing but missing in the result of labels’ processing are considered incomplete (i.e. incorrect in the modeling domain). Similarly, tokens present in the result of labels’ processing but missing in the result of textual description’s processing are considered invalid (i.e. irrelevant to the modeling domain). Therefore, respective semantic quality measures can be calculated. The software tool is created using the Python programming language because of its powerful natural language processing packages.Публікація Capturing software requirements for business process model analysis and improvement(Національний технічний університет "Харківський політехнічний інститут", 2020) Kopp, Andrii Mykhailovych; Orlovskyi, Dmytro LeonidovychThis paper considers the problem of software requirements capturing for business process model evaluation and recommendations generation to suggest how detected modeling errors may be eliminated in order to improve business process model correctness. Existing software tools for business process model analysis are based on metrics and thresholds that allow assume presence of errors in business process models, but they are not capable to recommend structural changes required to eliminate detected modeling errors. Therefore, business process model analysis and improvement tasks become relevant, since early detection and elimination of possible errors presented in business process models may allow organizations avoid extra costs that may occur on any of the steps of business process lifecycle. Since business process models are shared organizational assets, it is also necessary to consider the capabilities of collaborative and concurrent usage of business process models by multiple stakeholders. Hence, the workflow of business process model analysis and improvement was analyzed and its key steps, which describe expected user and software behavior, were formalized using the IDEF0 functional model. Functional software requirements were captured in the form of user stories according to modern agile practices of software development. These user stories are based on features and drawbacks of existing software tools for business process model analysis. Captured user stories were formalized using the use case modeling. Non-functional software requirements were also captured; they include maintainability, readability, testability, understandability, integrability, and complexity requirements. Captured requirements can be used to design and develop business process model analysis and improvement software capable to provide recommendations to eliminate detected modeling errors.Документ Розробка алгоритмічного та програмного забезпечення для розв’язку трьохвимірних нестаціонарних задач теплопровідності методом скінченних елементів(НТУ "ХПІ", 2012) Бреславський, Дмитро Васильович; Пащенко, Сергій ОлександровичСтаття присвячена розв’язанню трьохвимірних задач нестаціонарної теплопровідності методом скінченних елементів. Розглянуто метод та алгоритм розв’язку задачі з використання восьми вузлового скінченного елемента. Проведене порівняння чисельних та аналітичних даних показало цілком задовільну степінь достовірності отриманих розв’язків.Документ Интегрированное программное средство для численного анализа динамики роторов на различных опорах(НТУ "ХПИ", 2012) Мартыненко, Геннадий Юрьевич; Мякинников, С. С.Предложено интегрированное программное средство для описания динамики роторов. Оно позволяет по введенным пользователем параметрам системы «ротор-опоры» создавать в автоматическом режиме расчетную конечно-элементную модель вала, выбирать местоположение присоединенных масс и опор с заданием их типа и параметров. В качестве расчетных средств реализованы анализ собственных частот и форм с учетом гироскопического момента, поиск критических скоростей вращения, а также определение гармонического отклика на действие центробежных сил вызванных наличием дисбаланса масс. Достоверность расчетного средства подтверждена сравнением с расчетными и экспериментальными данными.