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Документ Towards Effectiveness Assessment of Domain Modelling Methods and Tools in SPL Development(German Informatics Society, 2018) Tkachuk, Mykola; Gamzayev, Rustam; Martinkus, Iryna; Sokol, Volodymyr; Tovstokorenko, OlehDomain-driven design (DDD) and especially the usage of domain modelling methods (DMM) are modern approaches to improve software quality, and a way to develop software product lines (SPL). To emphasize advantages of DDD and DMM usage, a 3-level design scheme is proposed, which reflects also variability issues in the framework. According to this metaphor the main attention is paid to the phases of logical domain modelling and physical modelling, with usage of two alternative DMM-methods: JODA and ODM approaches. The algorithmic model for an efficiency coefficient estimation of alternative DMM usage is proposed, which utilizes structured data resources, expert methods and metrics used in SPL development processes. A feasibility study for the proposed approach is provided and the obtained experimental results are discussed, which allow to make positive conclusions about this research and to outline its further steps to be done.Документ Знання-орієнтована інформаційна технологія для управління варіабельністю на етапі доменного аналізу у розробці програмного забезпечення(Національний технічний університет "Харківський політехнічний інститут", 2020) Gamzayev, Rustam; Tkachuk, Mykola; Shevkoplias, DariaThe subject matter of this paper is a research of issues related to the variability management at the stage of domain analysis (DA) in the full life cycle (FLC) of software products line (SPL). The main goal of this research work is the elaboration of a new knowledge-based information technology to support a variability management in DA as a most complex and weak-formalized stage in FLC of SPL. In order to reach this goal the following tasks were formulated and resolved: to analyze the variability issues in FLC on the example of the modern agile-development approach-in the Scrum-methodology; to study how the methods of knowledge handling can be used to support some users and domain-experts activities withinthe DA phase with respect to software variability modeling; to make the motivated choice of the suitable CASE-tools to elaborate an appropriate IT solution to support the knowledge-oriented approach to DA; to present this IT-solution in a structured form,to consider some its implementation issues, and to discuss the first testing results. The methodsused in this research are: domain-driven design approach to software development, repertory grids method and ontologies for expert’s knowledge handling, IDEF0 notation for specification of the proposed IT solution, feature-oriented domain analysis (FODA) for variability modeling. Conclusions:the results of this research shownthat the special attention has to be paid to the DA in a FLC, especially with usage of knowledge-based methods. To perform this process in an effective way the repertory grids method is motivated chosen and analyzed. To support the usage of this method in DA the proposal is made to elaborate the special IT-solution using some already available CASE-tools. The essentials functionality features of two such systems: GridSuite and SOVA (Semantical and Ontological Variability Analysis) are considered, and basing on this result, the integrated IT-solution is elaborated and presented in form of the IDEF0 diagram. Finally, the main technological facets of these tools installation are studied and tested, and the test-case to show the possibility to generate the FODA-variability model for the “Smart-Home” application domain is provided.