@inproceedings{TrostForstnerClausetal., author = {Trost, Marco and Forstner, Robert and Claus, Thorsten and Herrmann, Frank and Frank, Ingo and Terbrack, Hajo}, title = {Sustainable Production Planning and Control: A Systematic Literature Review}, series = {Proceedings of the 33th European Conference on Modelling and Simulation 2019 (ECMS), Caserta, Italy}, volume = {33,1}, booktitle = {Proceedings of the 33th European Conference on Modelling and Simulation 2019 (ECMS), Caserta, Italy}, doi = {10.7148/2019}, pages = {303 -- 309}, abstract = {This article reviews the state of the art in research regarding sustainable extensions of hierarchical production planning. Sustainability is currently of considerable importance due to various interest groups. Hierarchical operational production planning and control is the state of the art in research as well as in industrial practice for planning of stations and their aggregations to production systems. Thus, it might be highly relevant to improve sustainability. In the literature mainly the scheduling level as well as the ecological dimension are considered. So the current research is limited to selected partial planning problems and incomplete with regard to sustainable aspects that emerge.}, subject = {Produktionsplanung}, language = {en} } @inproceedings{FrankHerrmannClaus, author = {Frank, Ingo and Herrmann, Frank and Claus, Thorsten}, title = {Improving sustainability through substitutes in cross-location production planning}, series = {Proceedings of the International Annual Conference of the German Operations Research Society 2019 (OR 2019), Dresden, September 3 - 6, 2019}, booktitle = {Proceedings of the International Annual Conference of the German Operations Research Society 2019 (OR 2019), Dresden, September 3 - 6, 2019}, subject = {Produktionsplanung}, language = {en} } @incollection{TerbrackFrankHerrmannetal., author = {Terbrack, Hajo and Frank, Ingo and Herrmann, Frank and Claus, Thorsten and Trost, Marco}, title = {Eine Literaturdatenbank zur Nachhaltigkeit in der hierarchischen Produktionsplanung}, series = {Produktionsplanung und -steuerung}, booktitle = {Produktionsplanung und -steuerung}, editor = {Claus, Thorsten and Herrmann, Frank and Manitz, Michael}, publisher = {Springer Gabler}, address = {Berlin, Heidelberg}, isbn = {978-3-662-64290-0}, doi = {10.1007/978-3-662-64291-7_3}, pages = {27 -- 35}, language = {de} } @article{HerrmannNangmoWankoZeller, author = {Herrmann, Frank and Nangmo Wanko, Merveille and Zeller, Bernhard}, title = {Digitale Transformation in Echtzeit: Die Ziele von morgen basierend auf dem Datenmodell von gestern}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik}, volume = {16}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik}, publisher = {Technische Hochschule Wildau}, issn = {2296-4592}, doi = {10.26034/lu.akwi.2022.3453}, pages = {37 -- 47}, abstract = {Die Digitale Transformation fordert Unternehmen aller Couleur. Ironischer Weise sind es gerade die bisher verwendeten IT-Systeme mit ihren starren Strukturen, die Unternehmen in Ihrer digitalen Trans-formation oft ausbremsen. Auch wenn die Soft-warehersteller l{\"a}ngst reagiert haben und neue, flexib-lere Versionen ihrer Produkte anbieten, so ist ein gr{\"o}ßerer Softwarewechsel immer noch eine Heraus-forderung f{\"u}r Unternehmen und ein Schritt der wohl-{\"u}berlegt und geplant sein will. In dieser Arbeit wird deshalb ein Vorgehen vorge-stellt, um mittels In-Memory Technologie und Vir-tualisierung zumindest die wichtigsten Ergebnisse der Transformation bereits auf den bestehenden Da-tenmodellen in Echtzeit zu generieren. Dadurch wird genug Zeit gewonnen, um die eigentliche Transfor-mation der IT-Landschaft geplant und mit der not-wendigen Sorgfalt durchzuf{\"u}hren.}, language = {de} } @misc{Herrmann, author = {Herrmann, Frank}, title = {Simulation and Modelling in Supply Chains}, series = {13th International Conference on Advances in System Simulation, SIMUL 2021, October 03 - 07, 2021 in Barcelona, Spain}, journal = {13th International Conference on Advances in System Simulation, SIMUL 2021, October 03 - 07, 2021 in Barcelona, Spain}, publisher = {IARIA XPS Press}, language = {en} } @misc{EnglbergerHerrmannManitz, author = {Englberger, Julian and Herrmann, Frank and Manitz, Michael}, title = {Ber{\"u}cksichtigung stochastischer Einfl{\"u}sse bei der Hauptproduktionsprogrammplanung}, series = {Im Mix der Methoden - Neue Perspektiven der Produktionswirtschaft. 1. Doktorandenworkshop der Wissenschaftlichen Kommission f{\"u}r Produktionswirtschaft, 19./20. M{\"a}rz 2021, Berlin}, journal = {Im Mix der Methoden - Neue Perspektiven der Produktionswirtschaft. 1. Doktorandenworkshop der Wissenschaftlichen Kommission f{\"u}r Produktionswirtschaft, 19./20. M{\"a}rz 2021, Berlin}, publisher = {TU Berlin}, language = {de} } @misc{EnglbergerHerrmannClaus, author = {Englberger, Julian and Herrmann, Frank and Claus, Thorsten}, title = {A simulation analysis of Independent Requirements Consumption in Master Production Scheduling}, series = {ASIM Workshop, Trends in Computational Science and Engineering (ASIM TCSE 2012), February 13-14, 2012, Vienna University of Technology, Austria}, journal = {ASIM Workshop, Trends in Computational Science and Engineering (ASIM TCSE 2012), February 13-14, 2012, Vienna University of Technology, Austria}, abstract = {This poster presents purpose and function of the Independent Requirements Consumption in Master Production Scheduling and gives recommendations for its application. The approach of hierarchical production planning and its planning problems are explained. The problem of new customer requirements information between planning periods and solving options are shown. The solving option of Independent Requirements Consumption is focus of this poster. The algorithm of the Independent Requirements Consumption that is implemented in commercial Enterprise Resource Planning (ERP) systems like the SAP system is analyzed. The methods for analyzing the effects of the Independent Requirements Consumption are outlined. The scenarios for simulation studies are stated and compared to similar investigations. The simulation studies were performed on a simulation system at IPF that contains both a production planning and control system and a production. The extent of simulation analyses outreaches similar investigations, especially because of the variety of scenarios. For scenarios in which capacity is available to a sufficient extent, advice for setting the Independent Requirements Consumption parameters is given. It is pointed out that with production constrained scenarios, the necessity to level out production leads to problems. An algorithm to determine necessary inventory levels is presented. It is stated that straight advice for Independent Requirements Consumption parameter settings might not be possible with production constrained scenarios. Further analyses with production constrained scenarios as well as investigations concerning safety stocks in combination with Independent Requirements Consumption are current and future research topics at the Innovation Center for Production Logistics and Factory Planning.}, subject = {Produktonsplanung}, language = {en} } @misc{TerbrackClausHerrmann, author = {Terbrack, Hajo and Claus, Thorsten and Herrmann, Frank}, title = {An Optimization Model for Production Scheduling with Energy Consumption and Energy-related Emissions}, series = {OR 2022, International Conference on Operations Research 2022, September 6-9, 2022, Karlsruhe}, journal = {OR 2022, International Conference on Operations Research 2022, September 6-9, 2022, Karlsruhe}, abstract = {Due to the scarcity of resources, rising costs as well as the further need for ecological improvement in industrial production, firms are increasingly motivated to take into account energy consumption in production planning. Associated with this, the consideration of energy-related emissions is becoming an additional point of interest for decisionmakers in both, economic and ecological terms. Based on an extensive systematic literature review, the study at hand presents a multicriterial scheduling problem that addresses tardiness, energy consumption and energy-related emissions in production scheduling. A model is introduced that takes into account job release dates, multiple machine states, a power demand threshold as well as time-varying emission conversion factors. Multiple case studies are analysed and the effects of different technological implementations as energy onsite generation and energy storage systems are evaluated. Furthermore, several price mechanisms regarding energy procurement and emission trading are discussed. Moreover, by coupling the optimization model to a discrete event simulation model, we are able to compare the model results to real case scenarios. First computational experiments have demonstrated that the model and its extensions can effectively reduce the environmental impact associated with production while simultaneously considering corresponding economic objectives. Based on the proposed approach, our research aims on answering the question with which economic trade-offs an ecological improvement in terms of energy consumption and emission output can be achieved in production.}, language = {en} } @misc{HerrmannDilefeld, author = {Herrmann, Frank and Dilefeld, Maximilian}, title = {Improving the scheduling of AGV and AMR using simulation}, series = {OR23, International Conference on Operations Research, August 29 to September 1, 2023, Hamburg}, journal = {OR23, International Conference on Operations Research, August 29 to September 1, 2023, Hamburg}, abstract = {Automated Guided Vehicles (AGV) and intelligent Autonomous Mobile Robots (AMR) are an important tool for designing a flexible Industry 4.0 shopfloor. Both types of Mobile Robots are usually deployed with a Fleet Management software to manage (transport) orders and vehicles together with other superordinate control systems. The planning tasks in the superordinate control system used by both AGVs and AMRs can be divided into Material Flow Management, Job Management, Vehicle Dispatching and Job Processing. Requests for supply and removal of material is issued by the stations and has to be combined to transport jobs. Alternatively, more complex system often user external Material Flow Controllers (e.g. MES). Jobs are collected in a queue and their execution order is determined. Vehicles which can execute the next job have to be identified and the best one is selected. Jobs are split into smaller tasks which are sent to the Mobile Robot and executed. For AGVs navigation functions are mostly integrated into the Fleet Manager as part of the Job Processing, while AMRs perform lower-level navigation functions directly on the vehicle and use the superordinate control system for implementing restrictions and traffic control functions. A need for further research and development was identified especially for decision-making algorithms within the Fleet Management. The goal is to compare existing and develop new strategies to solve the different planning problems. For the individual planning tasks different techniques have been discussed and used in research and practice. However, there is no universal best solution and different options must be compared in the context of the specific use case.}, language = {en} } @misc{HerrmannSchoenClausetal., author = {Herrmann, Frank and Schoen, Maximilian and Claus, Thorsten and Dai, Chenghao}, title = {Aggregate Production Planning under Risk of Disruption}, series = {OR 2024, International Conference on Operations Research 2024, September 3-6, 2024, Munich}, journal = {OR 2024, International Conference on Operations Research 2024, September 3-6, 2024, Munich}, abstract = {In recent years, large scale disruptions to global supply chains, like the Covid pandemic, a ship blocking the Suez canal or sanctions against Russia, have caused production to slow down or even to stand still, causing shortages and massive losses for affected businesses. Even if only specific companies were originally affected, shortages and delays rippled along the supply network. The established approach to deal with disruptions is to utilize safety stock and capacity to compensate for fluctuations in uncertain quantities like customer demand. This approach is tried and tested for small fluctuations. To address larger disruptions, like the above given, very high safety stock and capacity would be needed, which would lead to unnecessarily high costs. Resilience has often been viewed as an expensive capability that drives costs. Recent studies however advocate for the development of lean resilience concepts, creating new capabilities, which enable resilience and can deal with large fluctuations, reimagining resilience from the perspectives of efficiency and value creation. This contribution identifies gaps in current research and establishes structural deficits of approaches discussed in the literature regarding supply chains. Firstly, the need for rigorous, quantitative definitions of resilience and relevant disruptions is justified. Then, a stochastic model for aggregate production planning that includes capabilities to compensate for such large fluctuations along several dimensions is proposed. Lastly, this model is then applied to a case study pertaining to a realistic supply chain under the risk of large scale disruptions and the results of this approach are evaluated.}, language = {en} } @misc{Herrmann, author = {Herrmann, Frank}, title = {Scheduling of a real world filter production with lot-size 1}, series = {SIMUL 2020: The Twelfth International Conference on Advances in System Simulation, 18.-22.10.2020 in Porto, Portugal}, journal = {SIMUL 2020: The Twelfth International Conference on Advances in System Simulation, 18.-22.10.2020 in Porto, Portugal}, editor = {Herrmann, Frank and Parra, Lorena and Popescu, Manuela}, publisher = {IARIA XPS Press}, address = {Wilmington, DE, USA}, isbn = {978-1-61208-831-0}, pages = {1 -- 6}, abstract = {In industrial practice, a travelling crane on the ceiling of a factory hall transports products in process from one station to the next one in a production line. Due to space restrictions, there is no buffer between the stations. The production line at Fiedler Andritz, Regensburg in Germany, can be seen as an example of such a problem class. Such restrictions reduce the set of feasible schedules even more than the no-buffer restrictions discussed in the literature in the case of limited storage. Since this scheduling problem is integrated in the usual hierarchical planning, the tardiness is minimised. Due to the high number of jobs as well as the goal of a simple algorithm, scheduling is always done by priority rules at the company site. The standard approach of using the net processing time causes poor results. A simulation of the processing time is suggested. In addition, several very relevant priority rules from the literature are modified by this simulated processing and significantly better results are obtained. Keywords-Simulation of processing time; scheduling, flowshop; no-buffer (blocking); no-wait; priority rules; real world application; filter production}, language = {en} } @inproceedings{EnglbergerHerrmannClaus, author = {Englberger, Julian and Herrmann, Frank and Claus, Thorsten}, title = {Simulation of robust Master Production Scheduling in an industrially relevant planning environment}, series = {Proceedings of the 27th EUROPEAN Conference on Modeling and Simulationn, May 27th - 30th, 2013, {\AA}lesund, Norway}, booktitle = {Proceedings of the 27th EUROPEAN Conference on Modeling and Simulationn, May 27th - 30th, 2013, {\AA}lesund, Norway}, doi = {10.7148/2013-0794}, pages = {794 -- 800}, abstract = {This paper presents a simulation analysis on the effects of robust master production scheduling. Up to now, relatively highly aggregated planning models for robust master production scheduling were regarded and the realizability of the planning results was not considered. This paper analyses a more detailed model for master production scheduling than in previous works. The evaluation of the planning results is made by providing the planning results to the subsequent planning levels in a hierarchical production planning system and realizing them in a realistic production system. The primary objective of the production system is to minimise tardiness of customer order deliveries. The secondary objective is to minimise inventory of end products. It is shown that robust master production scheduling in such a planning system leads to significant reductions of tardiness of customer order shipment. Compared to an equivalent deterministic approach for master production scheduling, the mean customer order backlog is reduced more than the mean inventory levels are increased.}, subject = {Hierarchische Produktionsplanung}, language = {en} } @article{Herrmann, author = {Herrmann, Frank}, title = {Ressourcenbelegungsplanung f{\"u}r den Realbetrieb einer teilautomatisierten Produktionslinie}, series = {wt Werkstattstechnik online}, journal = {wt Werkstattstechnik online}, number = {6}, pages = {441 -- 445}, abstract = {F{\"u}r die Fertigung von Spezialprodukten in vielen Varianten, f{\"u}r ein kleines Kundensegment und in kleinen St{\"u}ckzahlen, verwenden mittelst{\"a}ndische Unternehmen oft teilautomatisierte Produktionslinien. Sie besitzen h{\"a}ufig ausgepr{\"a}gte technologische Restriktionen, die viele Auftragsfolgen ausschließen. Aufgrund dessen sind Standardverfahren zur Ressourcenbelegungsplanung wie Priorit{\"a}tsregeln nicht anwendbar. M{\"o}glich ist, die Einhaltung der Restriktionen beim Erzeugen von Auftragsfolgen zu ber{\"u}cksichtigen.}, subject = {Flexible Fertigung}, language = {de} } @article{Herrmann, author = {Herrmann, Frank}, title = {Adaptive exponentielle Gl{\"a}ttung 1. Ordnung}, series = {Industrie Management}, volume = {28}, journal = {Industrie Management}, number = {2}, publisher = {Gito Verlag}, address = {Bremen}, pages = {63 -- 65}, abstract = {Bedarfe von Kunden nach Produkten und von der Produktion nach Teilen werden in Unternehmen sehr h{\"a}utig prognostiziert und ihre Ergebnisse werden in der operativen Produktionsplanung und -Steuerung intensiv genutzt. Bei regelm{\"a}ßigen und konstanten Bedarfsverl{\"a}ufen wird bevorzugt die exponentielle Gl{\"a}ttung 1. Ordnung eingesetzt. Zur Sicherung einer gleichbleibenden Prognosequalit{\"a}t ist sein Gl{\"a}ttungsparameter im Zeitablauf anzupassen. Eine Automatisierung wird vorgeschlagen und analysiert.}, subject = {Zeitreihenanalyse}, language = {de} } @inproceedings{EnglbergerHerrmannClaus, author = {Englberger, Julian and Herrmann, Frank and Claus, Thorsten}, title = {Independent Requirements Consumption in Master Production Scheduling in an Uncapacitated Environment}, series = {Informatics, Microsystems, Information Systems. Proceedings. 2012}, volume = {Vol. 1(1)}, booktitle = {Informatics, Microsystems, Information Systems. Proceedings. 2012}, isbn = {9785733909301}, subject = {Produktionsplanung}, language = {en} } @inproceedings{LangeHerrmann, author = {Lange, Frederick and Herrmann, Frank}, title = {Verbesserung der operativen Produktionsplanung durch Belastungsinformationen}, series = {Tagungsband der 7. Wismarer Wirtschaftsinformatik-Tage, Wismar, 2012}, booktitle = {Tagungsband der 7. Wismarer Wirtschaftsinformatik-Tage, Wismar, 2012}, subject = {Produktionsplanung}, language = {de} } @inproceedings{Herrmann, author = {Herrmann, Frank}, title = {Forecasting in production planning by adaptive exponential smoothing methods}, series = {Proceedings of the 25th European Conference on Operational Research (EURO XXV), Vilnius, Lithuania, 8-11 July, 2012}, booktitle = {Proceedings of the 25th European Conference on Operational Research (EURO XXV), Vilnius, Lithuania, 8-11 July, 2012}, subject = {Produktionsplanung}, language = {en} } @inproceedings{Herrmann, author = {Herrmann, Frank}, title = {Scheduling a flow-shop with simultaneously loaded stations}, series = {Proceedings of the International Annual Conference of the German Operations Research Society 2012,(OR 2012), September 4 - 7, Hannover}, booktitle = {Proceedings of the International Annual Conference of the German Operations Research Society 2012,(OR 2012), September 4 - 7, Hannover}, subject = {Fließfertigung}, language = {en} } @inproceedings{Herrmann, author = {Herrmann, Frank}, title = {Simulative analysis of storage strategies for pallet warehouses}, series = {Informatics, Microsystems, Information System, Proceedings, 2012}, volume = {Vol. 1(1)}, booktitle = {Informatics, Microsystems, Information System, Proceedings, 2012}, subject = {Palette }, language = {en} } @article{Herrmann, author = {Herrmann, Frank}, title = {Einstellung von Dispositionsarten in ERP- und PPS-Systemen}, series = {Productivity Management}, journal = {Productivity Management}, number = {3}, publisher = {GITO-Verlag}, address = {Berlin}, pages = {45 -- 47}, language = {de} } @article{EnglbergerHerrmannManitz, author = {Englberger, Julian and Herrmann, Frank and Manitz, Michael}, title = {Two-stage stochastic master production scheduling under demand uncertainty in a rolling planning environment}, series = {International Journal of Production Research}, volume = {54}, journal = {International Journal of Production Research}, number = {20}, publisher = {Taylor \& Francis}, doi = {10.1080/00207543.2016.1162917}, pages = {6192 -- 6215}, abstract = {This paper proposes a scenario-based two-stage stochastic programming model with recourse for master production scheduling under demand uncertainty. We integrate the model into a hierarchical production planning and control system that is common in industrial practice. To reduce the problem of the disaggregation of the master production schedule, we use a relatively low aggregation level (compared to other work on stochastic programming for production planning). Consequently, we must consider many more scenarios to model demand uncertainty. Additionally, we modify standard modelling approaches for stochastic programming because they lead to the occurrence of many infeasible problems due to rolling planning horizons and interdependencies between master production scheduling and successive planning levels. To evaluate the performance of the proposed models, we generate a customer order arrival process, execute production planning in a rolling horizon environment and simulate the realisation of the planning results. In our experiments, the tardiness of customer orders can be nearly eliminated by the use of the proposed stochastic programming model at the cost of increasing inventory levels and using additional capacity.}, subject = {Hierarchische Produktionsplanung}, language = {en} } @article{Herrmann, author = {Herrmann, Frank}, title = {Automatisierte Durchf{\"u}hrung von Bestandsmanagement-Projekten}, series = {wt Werkstattstechnik online}, journal = {wt Werkstattstechnik online}, number = {10}, address = {Berlin}, pages = {819 -- 824}, abstract = {Ein effizientes und effektives Bestandsmanagement ist wichtig, um die Auswirkungen etwa durch fehlende Produkte gering zu halten und die Lagerhaltungskosten zu minimieren. Die f{\"u}r viele Unternehmen geeigneten Formeln zum Bestandsmanagement und seine produktspezifische Anwendung werden in einem Leitfaden zusammengefasst und anhand eines realen Anwendungsfalls in diesem Fachbeitrag beschrieben. Eine manuelle Durchf{\"u}hrung ist besonders aufwendig. Deshalb wird erl{\"a}utert, welche Schritte des Leitfadens effektiv durch ein entsprechendes Programm durchgef{\"u}hrt werden k{\"o}nnen.}, subject = {Bestandsmanagement}, language = {de} } @article{HerrmannBurgmayr, author = {Herrmann, Frank and Burgmayr, Georg}, title = {Verkn{\"u}pfung von Software zu einem IT-Logistiknetzwerk}, series = {MaschinenMarkt online}, journal = {MaschinenMarkt online}, publisher = {Vogel Business Media}, address = {W{\"u}rzburg}, abstract = {Softwaresysteme sind f{\"u}r den Betrieb moderner Logistik- und Herstellungsbetriebe essenziell. Doch kaum eine auf dem Markt angebotene L{\"o}sung kann alle Anforderungen in Lager und Montage l{\"u}ckenlos abdecken. Kleine und mittlere IT-Unternehmen schließen sich zusammen - und damit diese Marktl{\"u}cke.}, subject = {Logistikunternehmen}, language = {de} } @inproceedings{Herrmann, author = {Herrmann, Frank}, title = {Evaluierung von Standardsoftware zur Abbildung von Gesch{\"a}ftsprozessen}, series = {Herausforderungen an die Wirtschaftsinformatik: Wissensmanagement, E-Business und ereignisgesteuerte Gesch{\"a}ftsprozesse in Echtzeit}, booktitle = {Herausforderungen an die Wirtschaftsinformatik: Wissensmanagement, E-Business und ereignisgesteuerte Gesch{\"a}ftsprozesse in Echtzeit}, editor = {Fuchs, Gerhard and M{\"u}ller, Christian and Ritz, Harald and Saint-Mont, Uwe}, publisher = {Verlag News \& Media}, address = {Berlin}, doi = {10.15771/978-3-936527-10-0}, pages = {52 -- 69}, language = {de} } @inproceedings{HerrmannStumvoll, author = {Herrmann, Frank and Stumvoll, Ulrike}, title = {Einstellung von Losgr{\"o}ßenheuristiken in ERP- bzw. PPS-Systemen}, series = {Proceedings zu den 7. Wismarer Wirtschaftsinformatik-Tagen vom 3.-4. Juni 2010 an der Hochschule Wismar}, booktitle = {Proceedings zu den 7. Wismarer Wirtschaftsinformatik-Tagen vom 3.-4. Juni 2010 an der Hochschule Wismar}, subject = {PPS}, language = {de} } @inproceedings{ClausHerrmann, author = {Claus, Thorsten and Herrmann, Frank}, title = {Simulation als betriebliche Entscheidungshilfe}, series = {Erg{\"a}nzungsband zu den Proceedings zur 14. ASIM Fachtagung "Simulation in Produktion und Logistik", vom 6. bis 8. Oktober 2010 am Karlsruher Institut f{\"u}r Technologie, Karlsruhe}, booktitle = {Erg{\"a}nzungsband zu den Proceedings zur 14. ASIM Fachtagung "Simulation in Produktion und Logistik", vom 6. bis 8. Oktober 2010 am Karlsruher Institut f{\"u}r Technologie, Karlsruhe}, subject = {Produktion}, language = {de} } @inproceedings{Herrmann, author = {Herrmann, Frank}, title = {Berechnung des Werts von Informationen im Supply Chain Management}, series = {Tagungsband zum 100. MNU-Bundeskongress ; Regensburg, 5. bis 9. April 2009}, booktitle = {Tagungsband zum 100. MNU-Bundeskongress ; Regensburg, 5. bis 9. April 2009}, organization = {Deutscher Verein zur F{\"o}rderung des Mathematischen und Naturwissenschaftlichen Unterrichts}, subject = {Supply Chain Management}, language = {de} } @article{WohankaHerrmann, author = {Wohanka, Christian and Herrmann, Frank}, title = {Anbindung von Halbleiter Fertigungsautomaten an die SAP NetWeaver Plattform}, series = {Industrie-Management}, journal = {Industrie-Management}, number = {2}, publisher = {Gito Verlag}, address = {Bremen}, pages = {39 -- 42}, subject = {Fertigung}, language = {de} } @article{HeindlHerrmann, author = {Heindl, Martina and Herrmann, Frank}, title = {Verk{\"u}rzung von Ein- und Auslagerzeiten in Lagerprozessen}, series = {PPS-Management}, volume = {12}, journal = {PPS-Management}, number = {4}, publisher = {GITO Verlag}, address = {Berlin}, pages = {47 -- 50}, subject = {Lagerhaltung}, language = {de} }