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    Item type:Publication, Access status: with files ,
    Manufacturing-as-a-Service (MaaS) to Increase value chain resilience and circularity: towards a systematic methodology for manufacturing process servitization and value chain orchestration
    (Elsevier, 2025-07) ; ;
    Worup, Emma B.
    ;
    ;
    In the current dynamic, volatile, and uncertain world, manufacturing companies face increasing pressure to respond efficiently and rapidly to disruptions, while at the same time adopting sustainable and circular practices. This paper focuses on Manufacturing-as-a-Service (MaaS) for enhancing resilience and promoting circularity in manufacturing value chains. Based on the limitations of existing MaaS research and scarcity of implementations, a systematic methodology is proposed for manufacturing process servitization, manufacturing process and product matching, and manufacturing process connection, collaboration and execution. This methodology supports the scaling of MaaS to a large variety of manufacturing processes, enabling dynamic distributed networks of manufacturing resources. Resiliency enhancing processes are outlined using MaaS for creating alternative value chain orchestrations, as responses to disruptions. Moreover, processes promoting circularity in relation to MaaS and resilience are outlined. This act as support for finding appropriate value chains partners to enable a circular product system and in increasing resilience and circularity simultaneously by reusing and remanufacturing critical components.
    Publicationtype: Journal Article
      27  25
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    Item type:Publication, Access status: with files ,
    Investigating the factors influencing the acceptance of fully autonomous cars
    Once thought of as a product of science fiction, self-driving cars are discussed today as an unavoidable means towards improving transportation systems. In fact, many car manufacturers have announced their plans to deploy highly autonomous cars as soon as 2020; according to the Society of Automotive Engineers (SAE) these vehicles are capable of reacting “even if the human driver does not respond appropriately to the request to intervene (SAE level 4)”. There is however a long way to go before fully autonomous cars (SAE level 5) - where pedals and steering wheels are forgone and limitations to driving during severe weather or in unmapped areas are surmounted - are produced. Herein, the overall aim is to study the drivers and inhibitors of autonomous cars’ acceptance across cultures with a special focus on the different risks that might deter consumers from using highly and/or fully autonomous cars. After an extensive reviewing of previous works, a research model based on UTAUT2 was developed and accordingly an online survey was conducted in the US and in Germany; 313 valid answers were collected and analyzed. The findings presented here have serious implications both on the academic field as well as the industry, especially in regards to the roles that risks, culture and gender play in the acceptance of fully autonomous cars.
    Publicationtype: Conference Paper
      1134  1245
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    Item type:Publication,
    Exploration of the product phase-out process in manufacturing firms: a human factor perspective
    (Emerald, 2017-09-04) ; ;
    Purpose: In today’s dynamic environment with shortened product life cycles, phase-outs because of product elimination are becoming increasingly frequent. Research on the phase-out process is still scarce. The lack of formalization of the process, especially from the labor perspective, leads to disturbances in phase-out execution. Therefore, the purpose of this paper is to analyze how phase-out is organized in industry to derive a generic labor phase-out process. Design/methodology/approach: This research identifies manufacturing firms that have eliminated products in the past as an adequate sample. Data collection relies on exploratory cross-industry after-the-fact interviews of entirely finished replacement and closure phase-outs. Findings: The labor phase-out process consists of four stages and each stage of several activities. There are two types of activities: rational and emotional, which should be combined to support companies in implementing a successful phase-out. Research limitations/implications: Phase-out is a sensitive process, and many experts from industry do not like to discuss phase-outs, in particular closure phase-outs. Although cross-industry coverage could be achieved, companies that intend to apply the developed process should individually adapt it to their own requirements and their own context. Practical implications: The presented labor process supports companies in formalizing phase-out, while identifying best practices. Originality/value: This research sheds light on a phase of the production cycle – the phase-out – that has been neglected so far in the extant literature and generates insights for manufacturing companies how they can formalize this process and how they can deal with it more systematically.
    Publicationtype: Journal Article
      135
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    Item type:Publication,
    Forecasting final lot size for phase-out spare parts
    Publicationtype: Conference Paper
      27
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    Item type:Publication,
    Material requirements planning under phase-out conditions
    (epubli, 2015) ;
    In today’s production environment with shortened product lifecycles, phase-outs, i.e. product elimination from production, become regular events. Badly planned phase-outs lead to high remaining stock levels after end of production, causing immense sunk costs. Previously performed 26 interviews revealed that this is a major challenge in current production (Grussenmeyer and Blecker, 2014; Grussenmeyer, Gencay and Blecker, 2014). Therefore, the objective of this paper is to develop a material requirements planning focusing on remaining stock induced costs during phase-out to plan optimal phase-out quantity and phase-out date. The research is conceptually driven and proposes an example of the methodology.
    Publicationtype: Conference Paper
      18
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    Item type:Publication, Access status: with files ,
    Production phase-out during plant shutdown
    This is an open access article under the CC BY-NC-ND license. Today's industry environment is characterized through a very unpredictable market. Therefore, companies establish robust production and logistics systems [1]. However, sometimes the established robustness does not prevent companies from location dynamics, including plant shutdowns or plant relocation [2]. Then, particularly, when big companies are involved and plenty of jobs are at risk, the public pressure is immense [3], which requires an effective management. Even though the market forces are obvious, the research intensity related to plant shutdowns is comparably low [4]. Appropriate expertise can be gained especially for the production phase-out (a repeated procedure), which is the operative implementation of every plant shutdown, but also takes place during standard product elimination. The paper's aim is primarily to conceptualize the different plant shut-down options. Second, it targets on analyzing how the production phaseout and the plant shutdown are organized in industry and to investigate if and how these processes can be standardized to avoid inefficiencies. In-depth expert interviews have been conducted. A purposive sampling strategy was followed including companies ex-post to their plant shutdown caused by insolvency, consolidation, offshoring, divestment/product elimination and outsourcing. Based on the empirical results, the relation between production phase-out and plant shutdown is emphasized. The evidence results in a framework of plant shut down reasons and concluding processes. The further developed process for production phase-out during a shutdown displays a form of guideline for companies.
    Publicationtype: Journal Article
    Scopus© Citations 1  275  299
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    Item type:Publication,
    Aligning product phase-out with new product development
    (Kongreßzentrum IGLS, 2014-02) ;
    Publicationtype: Conference Paper
      33
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    Item type:Publication,
    NPD-SCM alignment in mass customization
    This chapter aims to develop a new product development supply chain management alignment framework for mass customization. A case study conducted in industry motivates this framework. Variety, modularity, and innovativeness are the product features that should be taken into account when studying alignment in a mass customization setting. From the supply chain viewpoint, configuration, collaboration, and coordination complexities are the variables that matter. We formulate ten propositions explaining the relationships between the variables of the framework. It must be noted that innovativeness, a variable that has so far been neglected with respect to the alignment question, plays a critical role in supply chain management decisions.
    Publicationtype: Book part
      10
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    A framework for the alignment of new product development and supply chains
    The purpose of this paper is to develop a framework that explains how new product development and supply chain variables are related to one another and how they affect performance.
    Publicationtype: Journal Article
    Scopus© Citations 124  515  4792
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    Item type:Publication, Access status: with files ,
    From open source in the digital to the physical world: a smooth transfer?
    The purpose of this paper is to investigate the transferability of the open source principles of product development from the realm of software to the realm of physical products.
    Publicationtype: Journal Article
    Scopus© Citations 12  521  765