TY - GEN A1 - Kappel, Antonia A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - How to capture suppliers’ relationships with competitors and complementors? - An approach to supply network mapping using a World Café method, 26th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Coping with the Future: Picking your Battles", Budapest/Balatonfured, Hungary Y1 - 2017 ER - TY - GEN A1 - Kappel, Antonia A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - Supplier relationships with competing customers - How can purchasers find out who is the preferred customer?, 27th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Purchasing and Supply Chain Management: Fostering Innovation", Athens, Greece. Y1 - 2018 ER - TY - GEN A1 - Kappel, Antonia A1 - Buchholz, Wolfgang T1 - Application of a Supply Net Mapping Model to improve strategic sourcing in the agricultural machinery industry. 25th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Purchasing & Supply Management - from efficiency to effectiveness in an integrated Supply Chain Management". Dortmund, Germany. Y1 - 2016 ER - TY - GEN A1 - Holt, Christian A1 - Buchholz, Wolfgang A1 - de Bie, Holger T1 - How to identify indirect material for global sourcing? Conceptualization of a portfolio matrix based on an exploratory empirical study, 26th Annual International Purchasing and Supply Education and Research Association (IPSERA) Conference: "Coping with the Future: Picking your Battles", Budapest/Balatonfured, Hungary , 2017 Y1 - 2017 ER - TY - CHAP A1 - Engelking, Bastian A1 - Buchholz, Wolfgang A1 - Köhne, Frank T1 - Design Principles for the Application of Machine Learning in Supply Chain Risk Management: An Action Design Research Approach T2 - Supply Management Research / Ed. Christoph Bode N2 - The opportunity to anticipate delivery failures, shortages or delays in company’s upstream supply chains at an early stage facilitates to take preventive countermeas-ures to mitigate potential damage. However, data-driven predictive technologies such as machine learning (ML) are rarely examined in supply chain risk management (SCRM). The purpose of the following paper is to present a framework of design principles for the application of ML in SCRM. The foundation of this framework is an action design research (ADR) project, which is performed in collaboration with the SCRM department of an automotive company. A predictive ML model is developed and evaluated in collaboration with the company. Based on the findings and observa-tions made during the project, general design principles are derived and grouped by the three interrelated elements of organisation, development and operation, which are to be considered when applying ML in SCRM. Finally, the derived elements and the corresponding design principles are discussed and justified with reference to the literature. Y1 - 2020 SP - 1 EP - 28 PB - Springer CY - Berlin ER - TY - CHAP A1 - Delke, Vincent A1 - Schiele, Holger A1 - Buchholz, Wolfgang A1 - Stek, Klaas T1 - Defining Industry 4.0 skills in purchasing and supply management T2 - 28th EurOMA conference: Managing the “new normal”: The future of Operations and Supply Chain Management in unprecedented times N2 - To increase maturity within purchasing and supply management (PSM), future purchasing skills are needed based on the technological development towards Industry 4.0. Past research, eg, the work of Bals, Schulze, Kelly, and Stek (2019), started to address this issue based on literature review and interview studies. However, a detailed description of these skills is missing. Utilizing a real-time Delhi study with 45 experts within the PSM field, nine future purchasing skills have been elaborated. Identified skills connect to the maturing and emerging technologies within purchasing and provide a guideline towards Industry 4.0 in purchasing based on a human-centric perspective. Y1 - 2021 ER - TY - CHAP A1 - Delke, Vincent A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - Mind the Gap: Identifying Skill Gaps in Purchasing and Supply Management T2 - Proceedings 29th IPSERA conference N2 - Nowadays, the human-centric discipline of purchasing and supply management (PSM) is of strategic importance for firms’ success. Within the discipline, scholars address PSM professionals’ skills and provide practitioners with academic insights. Due to changes in the industry environment, changes in the working environment and the task of purchasing professionals are assumed. This paper aims to contribute to the PSM professional skills literature by defining current PSM professionals’ skill gaps as the difference between the acquired skill level and perceived skill importance. Findings show that current PSM professionals feel to be underqualified to abstract the full potential of professional relationships, as buyer-supplier relationships, due to current PSM professionals’ skill gaps. Y1 - 2020 ER - TY - CHAP A1 - Delke, Vincent A1 - Schiele, Holger A1 - Buchholz, Wolfgang T1 - Identifying Future Skills Requirements: Differentiating between Direct and Indirect Material Purchasers T2 - Proceedings 29th IPSERA conference N2 - The global development towards the Fourth Industrial Revolution, the so-called Industry 4.0, is steaming forwards. Where cyber-physical systems connect the physical and digital world, allowing for demand identification, without the need for direct human intervention. Further, Artificial Intelligence supports various parts of operative and strategic purchasing. The new purchasing environment forces purchasing professionals to develop new skills. Research is needed to identify appropriate skill sets. Based on a World-Café method with 82 purchasing professionals, a list of 32 essential future skills in purchasing is composed. Further, the identified skills are ranked and assigned to the roles of the direct and indirect material purchasers. Y1 - 2020 ER - TY - CHAP A1 - Delke, Vincent A1 - Buchholz, Wolfgang A1 - Schiele, Holger T1 - Specifying roles in purchasing and supply management in the era of Industry 4.0: A Delphi study T2 - 28th EurOMA conference: Managing the “new normal”: The future of Operations and Supply Chain Management in unprecedented times N2 - New technologies and systems within the field of purchasing and supply management (PSM) call forth responsibilities and require expertise. Moving towards Industry 4.0 in purchasing, increasing attention on specialization within talent and skills, where human capital is needed to exploit the full potential of technologies. Based on an internet-based real-time Delhi study with 47 experts within the PSM field, six future purchasing roles have been defined and elaborated. These future roles connect to the maturing and emerging technologies within the purchasing field and provide a guideline to further develop towards Industry 4.0 in purchasing based on a human-centered evolutionary approach. Y1 - 2021 ER - TY - GEN A1 - Damwerth, Philipp A1 - Bach, Norbert A1 - Buchholz, Wolfgang A1 - Rosculete, Maria-Ana T1 - Collective dynamic capabilities in innovation ecosystems - an analysis of the multi-actor process Y1 - 2023 ER -