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    Item type:Publication, Access status: with files ,
    Navigating viewpoints in MBSE: challenges, potential and pathways for stakeholder participation in industry
    (Cambridge University Press (CUP), 2025-08-27)
    Förster, Felix
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    Koldewey, Christian
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    Bernijazov, Ruslan
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    Dumitrescu, Roman
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    Bursac, Nikola
    Model-based Systems Engineering (MBSE) supports managing complex engineering projects. A pivotal element of MBSE is the concept of views which provide tailored representations of a system model to address stakeholder concerns. Despite standards describing the use and generation of views, the adoption and practical implementation of MBSE views and viewpoints in industrial practice remain insufficiently explored. Interviews with German practitioners reveal a disconnect between theory and practice: views and viewpoints and the involvement in MBSE are often limited to technical experts, excluding non-technical stakeholders. High complexity, abstract representations, and tool-related barriers impede broader engagement. The findings suggest stakeholder-specific, accessible visualizations integrated into easy-to-use tools to improve understanding, collaboration, and decision-making.</jats:p>
    Publicationtype: Journal Article
      48  26
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    Item type:Publication, Access status: without files ,
    Chances of smart Views: Integration of Stakeholder perspectives using videobased Views in MBSE
    (Fraunhofer IAO, 2025-05-22)
    Förster, Felix
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    Bausen, Steffen
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    Bernijazov, Ruslan
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    Koldewey, Christian
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    Bursac, Nikola
    The effective integration of stakeholders plays a central role in the success of product development. In Model-Based Systems Engineering (MBSE), access to information for stakeholders without MBSE experience is made more difficult by a formalized, abstract presentation, thus reducing the integration potential for stakeholders. The concept of view formation with views and perspectives exists in MBSE to support stakeholders. There are also new, smart forms of representation in the literature that support stakeholder integration without formalized diagrams. The intuitive readability of such smart views has not yet been analyzed. The aim of this thesis is to investigate intuitively readable forms of presentation and smart visualizations as well as their possible design. In addition, the positive influence of such visualizations - in the form of a video - on the system understanding of stakeholders is analyzed in comparison to conventional, diagram-based representations. The laboratory study shows that the use of a smart view improves system understanding while reducing the time required.
    Publicationtype: Conference Paper
      80
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    Item type:Publication, Access status: without files ,
    Evolving roles in systems engineering — insights from Germany's mechanical and plant engineering sector
    (Wiley, 2024-09-07)
    Kaiser, Lydia
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    Wilke, Daria
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    Förster, Felix
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    Köhler, Ingmarie
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    Dumitrescu, Roman
    Systems Engineering is developing differently in each sector and region. In German industry, especially in mechanical and plant engineering, Systems Engineering is of major importance. The introduction of Systems Engineering raises the question of which roles and competencies are required. This article examines the evolution of roles in Systems Engineering from a German perspective. Based on a literature review, the evolution of the identified Systems Engineering roles over time is shown, starting with the seminal publication by Sheard in 1996. It points out that only minimal adjustments and occasional role renaming have occurred. However, the review shows a common understanding of essential areas of responsibility within the SE and changes over time. The next step is to examine the current understanding of Systems Engineering roles in the industry. A quantitative analysis of job postings in Germany reveals a diverse interpretation of the term 'Systems Engineer; more than half of the positions cannot be categorized according to the INCOSE definitions. The job postings are used to determine which tasks are associated with the job, how often they occur, and in what combination. The primary responsibilities of systems engineers include creating and managing requirements, architecture processes, validation, and verification processes, and coordinating with customers and stakeholders. Finally, three representative companies from the mechanical and plant engineering sector were selected to analyze existing roles and tasks. From this, a common understanding of tasks and responsibilities is combined and organized into clusters. These are used by the companies to locate and thus derive their roles. The result is in an integrative approach that enables companies, especially in the midsize and medium sectors, to design the introduction in line with stakeholder demands. In summary, the industry's ongoing adaptation necessitates the evolution of Systems Engineering roles and competencies for successful and sustainable development and implementation of systems.
    Publicationtype: Conference Paper
      55
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    Item type:Publication, Access status: with files ,
    Product and production design - rethinking views on flexibility
    (Elsevier, 2024)
    Beibl, Julia
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    Disselkamp, Jan Philipp
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    Dumitrescu, Roman
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    Krause, Dieter
    The recent years have shown that long global supply chains are vulnerable considering volatile markets. As a result, efforts to achieve supply chain resilience are increasing. Achieving resilience requires flexibility, incorporated in product development, which can be implemented by the production system. Flexibility also offers the advantage in the context of sustainability that production facilities remain in use longer than rigid production lines because they can be better retrofitted. Furthermore, volatile markets challenge companies with a higher frequency of changes of requirements and decreasing forecast quality. Accompanied by a decreasing time-to-market and higher complexity of products companies need to increase their overall flexibility. A particular challenge is that routing flexibility is not used in production, for example, because the control effort is too time-consuming and complex. The use of AI and cyber-physical systems provides support to manage the control effort and thus enable flexibility in production. This paper discusses the role of flexibility in product development and production planning. The characteristics of products and production systems are analysed to identify important design aspects for flexibility. Comparing different systems shows for instance that non-linear structures with flexible links offer strategic advantages.
    Publicationtype: Conference Paper
      34  176
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    Item type:Publication, Access status: with files ,
    Identification of sociotechnical changes caused by Industry 4.0
    (epubli, 2020-09-23)
    Schnasse, Felix
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    Menzefricke, Jörn Steffen
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    Gabriel, Stefan
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    Hobscheidt, Daniela
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    Parlings, Matthias
    Purpose: Industry 4.0 provides significant potentials for companies. Despite the promising opportunities, companies, especially SME, are still hesitant to implement new technologies. The main reasons are far-reaching changes with respect to the so-cio-technical dimensions causing risks that are difficult to assess. This research pro-vides a methodology to identify these socio-technical changes for Industry 4.0 use cases. Methodology: Based on the three Design Science Research Cycles, a procedure and the corresponding methods for identifying socio-technical changes and risks during the introduction of Industry 4.0 will be designed. Findings: The developed tool enables the derivation of use-case specific changes and risks in the socio-technical dimensions of human, technology and organization. These interactions have to be considered when introducing Industry 4.0 use cases in order to ensure a promising usage. In addition, the need for further research in the field of socio-technical risk management is identified. Originality: Classical approaches do not address socio-technical interdependencies during the implementation of Industry 4.0 solutions. To bridge this gap, this meth-odological approach combines risk management and the concept of socio-technical system design.
    Publicationtype: Conference Paper
      309  335
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    Item type:Publication, Access status: with files ,
    Methodical Approach for Process Selection in Additive Manufacturing
    (Cambridge University Press (CUP), 2019-07-26)
    Wortmann, Jana Nadine
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    Jürgenhake, Christoph
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    Seidenberg, Tobias
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    Dumitrescu, Roman
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    Krause, Dieter
    In recent years, rapid technical progress has led to additive manufacturing achieving a high degree of technological maturity that enables a broad range of applications. This is reinforced in particular by the advantages of the technology, such as the production of complex components, smaller quantities and fast reaction times. However, a lack of knowledge of the various process techniques, such as insufficient potential assessment, specific design guidelines or even of process restrictions, often lead to different errors. This paper presents a methodological approach to support designers in the manufacturing process selection of specific parts at an early stage of product development. In a four-stage procedure, potential part candidates are first identified and part classes formed on the basis of characteristics. Building on this, AM thinking is to be stimulated, for example, with the aid of design guidelines. A comparison between conventionally and additively manufactured parts can be made using a simplified cost model. The results are incorporated into a process model that supports companies in the systematic selection of manufacturing processes.
    Publicationtype: Conference Paper
    Scopus© Citations 4  167  209
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    Item type:Publication, Access status: without files ,
      37