Dissertations / Theses on the topic 'Production management model'
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Stuart, Julie Ann. "A strategic environmentally conscious production decision model." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/24160.
Full textJooste, J. L. (Johannes Lodewikus). "A performance management model for physical asset management." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53286.
Full textENGLISH ABSTRACT: Two fundamental aspects in modem business success are performance management and physical asset management. The current problem in the asset management environment is the lack of structured performance management, which is required to effectively control and enhance the dynamics of the asset and its life cycle. The result is ineffective assets with high life cycle costs, which will consequently influence the bottom line and return on investment, negatively. An Asset _eerformance Management Model (APM2 , pronounced A-P-M square) was developed. A sound theoretical foundation together with the experience of a leading asset management consultant resulted in the realization of a model that (i) gives a balanced view of asset performance, (ii) link asset performance to strategic business objectives, (iii) facilitates decision-making and problem solving, and (iv) enhances asset control and continuous improvement. The APM2 was developed by rese~ching and integrating five building blocks, which encompass the model requirements. The APM2 consists of two distinct components, namely: • the APM Reference Structure (APMRS), and • a range of APM Dockets. The APMRS is a basic structure that integrates the various building blocks into a framework for providing guidance and control, giving perspective on the entire model and explaining the high-level content of the model. It consists of five levels, each with a distinct focus: • Levell: Enterprise • Level2: Factory • Level3: Process Unit • Level4: Aggregate • Level5: Component The APM Dockets are a subset of the APMRS, where each level has a docket. These dockets are executable, unit-specific procedures, guiding and leading stakeholders towards improved asset performance. Also each of the five levels consists of six similar and inter-related elements. These elements are the foundation for each docket: lement 1: Stakeholders Element 2: Objectives Element 3: Measures Element 4: External Monitor & Targets Element 5: Responsibilities & Decision-Making Element 6: Control & Continuous Improvement Element 7 represents the link to the next level in the APM Reference Structure. • • • • • • Conclusively the APM2,s simplicity and understandability is realized through the APM Reference Structure, while the range of APM Dockets contribute to the practicality objective. The model has a strong theoretical foundation, but at the same time is generic, to be used in a wide range of industries. A leading asset management consultant plans to integrate the APM2 into their asset management program based on the thesis documentation. This application will test and validate the APM2 in practice. It is further recommended that an asset management program, with the associated APM2 , be used in conjunction with the Theory of Constraints and Total Productive Maintenance, because of obvious relationships. Further research is also suggested in relation with some of the experimental asset life cycle phases as well as certain financial considerations.
AFRIKAANSE OPSOMMING: Twee fundamentele aspekte in hedendaagse besigheidsukses is prestasiebestuur and fisiese batebestuur. Die huidige probleem binne die batebestuursomgewing is die gebrek aan gestruktureerde prestasiebestuur, wat 'n vereiste is vir effektiewe beheer en verbeterings rondom die bate en sy lewensiklus. Die resultaat is oneffektiewe bates met hoë lewensikluskoste wat gevolglik wins en beleggingsopbrengs negatief beïnvloed. 'n Prestasiebestuur Model vir Bates (APM2, uitgespreek as A-P-M square) is ontwikkel. 'n Deeglike teoretiese fondasie tesame metdie ondervinding van vooraanstaande raadgewende batebestuurders, het die realisering van 'n model tot gevolg gehad, wat (i) bateprestasie gebalanseerd voorstel, (ii) bateprestasie met strategiese doelstellings verbind, (iii) besluitneming and probleemoplossing fasiliteer, en (iv) batekontrole en voortdurende verbetering bevorder. Die APM2 is ontwikkel deur middel van die identifisering en integrasie van vyf boustene wat die vereistes vir die modelomvat. Die APM2 bestaan onderskeidelik uit twee komponente, naamlik: • die APM Verwysingstruktuur (APMRS), en • 'n reeks APM Vouers. Die APMRS is 'n basiese struktuur wat die verskillende boustene binne 'n raamwerk integreer en sodoende leiding en beheer fasiliteer, die model as geheel in perspektief stel en die modelinhoud op hoë vlak verduidelik. Dit bestaan uit vyf vlakke, elk met 'n spesifieke fokus: • Vlak 1: Onderneming • Vlak2: Fabriek • Vlak 3: Proseseenheid • Vlak 4: Aggregaat • Vlak 5: Komponent Die APM Vouers is 'n subdeel van die APMRS, waar elke vlak 'n vouer het. Hierdie vouers is uitvoerbare, eenheid-spesifieke prosedures wat deelhebbers lei na beter bateprestasie. Ook bestaan elkeen van die vyf vlakke uit ses soortgelyke en inter-afhanklike elemente. Hierdie elemente is die fondasie vir elk van die vouers: • Element 1: Deelhebbers • Element 2: Doelwitte • Element 3: Metings • Element 4: Eksterne Monitering & Mikpunte • Element 5: Verantwoordelikhede & Besluitneming • Element 6: Kontrole & Voortdurende Verbetering • Element 7 stel die verbinding met die volgende vlak in die APM Verwysingstruktuur voor. Gevolglik word die eenvoud en verstaanbaarheid van die APM2 gerealiseer deur die APM Verwysingstruktuur, terwyl die reeks APM Vouers bydra tot die praktiese doelwit. Die model het 'n sterk teoretiese grondslag, maar terselfdertyd is dit generies, sodat dit in 'n wye spektrum van industrieë gebruik kan word. Gebaseer op die tesis dokumentasie beplan vooraanstaande raadgewende batebestuurders om die APM2 te integreer met hul batsbestuursprogram. Hierdie toepassing sal sodoende die APM2 in die praktyk toets en bekragtig. Dit word verder aanbeveel dat 'n batebestuursprogram, met die geassosieerde APM2, tesame met die Theory of Constraints en Total Productive Maintenance gebruik word, as gevolg van voor die hand liggende verwantskappe. Verdere navorsing word ook voorgestel in verband met die eksperimentele fases binne die batelewensiklus, asook rakende sekere finansiële oorwegings.
Hollingsworth, Keith Brian. "A warehouse benchmarking model utilizing frontier production functions." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/24856.
Full textStenberg, Johan. "Global production management in newspaper production and distribution : coordination of products, processes and resources." Doctoral thesis, KTH, Production Systems, 1997. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2485.
Full textThis thesis covers an introduction to the present conditions for newspaper publishing, definitions and analyses of the processes of newspaper production and distribution, expected future developments with respect to products and production processes, and finally, conclusions regarding the need for global coordination of products, production and distribution.
Primarily, the conditions in the Nordic countries have been analysed. Particular attention has been drawn to Swedish morning newspapers with a circulation exceeding about 50 000 copies per publishing day.
The study has been carried out mainly through literature research, through case studies using the SDA-method, and through acquisition and analyses of production data from the case studies. In addition, interviews and questionnaires have been used.
A modern newspaper printing plant requires heavy investments. The number of newspaper printing plants is decreasing, but he number of newspaper titles printed in each plant increases. The flexibility in and utilisation of the remaining plants increases as well as the complexity and variety of the products handled.
In all case studies of newspaper production, the companies use fixed production and distribution plans, following the same timetable from day to day. Delayed press starts, deviations from the calculated production speed, and interruptions during the production immediately cause disturbances in the distribution, delay costs, and goodwill losses.
The time needed to produce a fixed number of copies varies within a wide range. Days of more complex production in the production plants meet with problems more often. The average net production speed is progressively reduced at higher page counts. Inserting operations result in an accelerated reduction. The difference is mainly caused by product related differences in cruising speed and by the occurrence of unplanned stops. The coordination of products, production and distribution is essential already today, and will be even more important in the future.
More flexible production and distribution plans would imply controlled and predictable risks. In addition, it will render increased utilisation of the resources available. A product model can be used in order to identify an associated production process model as a set of separate activities. Detailed modelling of the different activities demands detailed tracking and systematic use of the production history. A detailed activity modelling will make it possible to predict the capability of a certain activity in terms of production speed and reliability. This will facilitate coordination on a global level.
Huallpa, Junior, Tomas Vera, Ernesto Altamirano, Carlos Raymundo, and Javier M. Moguerza. "Production management model for increasing productivity in bakery SMEs in Peru." Springer Verlag, 2019. http://hdl.handle.net/10757/656250.
Full textThere is a high margin of informality in small- and medium-sized companies in the bakery sector because of their lack of focus and poor standardization of their activities. Bakery SMEs, the activities of which have not yet been standardized, usually perform activities inefficiently, unnecessarily extending production times. The current average productivity of Lima-based SMEs is 1.7, a figure that, when compared with countries in the Pacific Alliance, is low. In addition, currently no methodologies seek continuous process improvement. Therefore, a Lean Process Management model was established to reduce activities and times. As validation, a production time simulation was performed in a warehouse, increasing the productivity to 2.08, with a percentage variation of 87.39% when compared with the initial productivity.
Mancilla-Escobar, J., I. Maccasi-Jaurequi, C. Raymundo-Ibañez, and M. Perez. "Layout Lean model of production management based on change management to improve efficiency in the production of packaging in auto parts sector SMEs." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/656401.
Full textFrancis, Merwin. "A model for assessing the anticipated relative financial impact of implementing the tools of lean manufacturing on a manufacturing concern." Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/1326.
Full textAppau, Kwaku Addae. "An integrated model of computer-aided cost estimating/scheduling in construction management." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/23130.
Full textMuñante, Alejandra, Fabrizio Reyes, Fernando Sotelo, and Carlos Raymundo. "Management model for pecan production using process tools in an MSE in Peru." Springer Verlag, 2020. http://hdl.handle.net/10757/656130.
Full textThe following study proposes a production management process model based on good practices and developed with process management tools for increasing crop productivity of pecan nuts using the Ica region in the district of Pachacutec as a study area. The study covers the proposed model’s diagnosis and development. The relation between these stages is the main function of improving pecan orchard productivity. The study showed that to increase pecan productivity from 1.09 (t/ha) to 2.21 (t/ha), and to determine raw material needs, tools and/or labor, a standardized process is needed for pecan production. The study’s main contribution is the development of a production management process through which farmers can order and control production by means of indicators. Furthermore, the study proposes that the developed process of pecan production currently applied by farmers should be supported by a mathematical model simulation.
Sosa-Perez, V., J. Palomino-Moya, C. Leon-Chavarri, C. Raymundo-Ibañez, and F. Dominguez. "Lean Manufacturing Production Management Model focused on Worker Empowerment aimed at increasing Production Efficiency in the textile sector." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/656397.
Full textZeng, Tian S. M. Sloan School of Management. "The competency model of movie producers for cross-cultural co-production projects." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/126999.
Full textCataloged from the official PDF of thesis.
Includes bibliographical references (pages 36-38).
Movie producers are the de facto managers and leaders of movie crews who demand a comprehensive set of communication skills to solve the hundreds of problems during daily productions. The recent rise of international co-production movies has created more and more workspaces with multicultural teams. This calls for additional cross-cultural communication skills for producers to resolve new intercultural conflicts and communication issues that have emerged in this new working environment. This paper examines the competency model of movie producers in the context of cross-cultural communication. This paper also presents a co-production case to illustrate the findings of cross-cultural communication competency theories.
by Tian Zeng.
S.M. in Management Studies
S.M.inManagementStudies Massachusetts Institute of Technology, Sloan School of Management
Durand-Sotelo, L., M. Monzon-Moreno, P. Chavez-Soriano, C. Raymundo-Ibañez, and F. Dominguez. "Lean production management model under the change management approach to reduce order fulfillment times for Peruvian textile SMEs." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/656400.
Full textSullivan, Neal H. "An algorithm for a landscape level model of mast production /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3013030.
Full textSiddique, Zahed. "Conversion of CAD model data for virtual prototypes for disassembly." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/17877.
Full textSoriano-Meier, Horacio. "An empirical model to evaluate the adoption of lean production in a craft production environment : the UK ceramic tableware industry." Thesis, Keele University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327652.
Full textTirado, Quito Lopez. "A simulation model to assess primary production and use of Bouteloua gracilis grasslands." Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253495.
Full textSouza, John R. (John Raymond). "The development of a simulation model to determine plant capacity and production variability." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/50314.
Full textSingh, Sahdev. "A computer simulation model for wastewater management in an integrated (fish production-hydroponics) system." Diss., Virginia Tech, 1996. http://hdl.handle.net/10919/37764.
Full textBecker, Till [Verfasser]. "Parallels between Manufacturing Systems in Industrial Production and Metabolic Systems in Biological Cells a Network Based Unifying Model from a Production Logistics Perspective / Till Becker." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2013. http://d-nb.info/1035269481/34.
Full textManning, L. J. "Development of a quality assurance model for poultry meat production." Thesis, Coventry University, 2008. http://curve.coventry.ac.uk/open/items/bd90e402-5959-3143-b469-4581341759c5/1.
Full textDailey, Caleb A. (Caleb Alexander) 1971. "The use of a plant capacity model for production scheduling and operations analysis." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50402.
Full textIncludes bibliographical references (p. 65).
by Caleb A. Dailey.
S.M.
Chávez, José, Fernando Osorio, Ernesto Altamirano, Carlos Raymundo, and Francisco Dominguez. "Lean production management model for SME waste reduction in the processed food sector in Peru." Springer, 2019. http://hdl.handle.net/10757/656241.
Full textThe reduction of waste is a constant concern for companies that form part of a supply chain. In industrial processors, these are related to logistics solutions, because the production process of the different products is highly automated. In the case of the Peruvian potato, this model is not applicable due to its irregular characteristics. In this context, this paper proposes an improvement in the process of elaboration of processed potatoes in order to reduce or eliminate waste in food sector companies. Identification tools are used for activities that do not generate value, such as the VSM, and other continuous improvement tools such as Kaizen and 5S, as well as a simulation model. In the validation, an 89% increase in the product yield, as well as a 72% efficiency increase, is obtained.
Casamento, James William. "A model for predicting and managing a production ramp-up of a new product." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12781.
Full textIncludes bibliographical references.
by James William Casamento.
M.S.
Weaver, Adam Matthew. "A model based approach to the design and implementation of computer aided production management systems." Thesis, University of Plymouth, 1995. http://hdl.handle.net/10026.1/1968.
Full textMau, Milagros, Roger Ramos, José Llontop, and Carlos Raymundo. "Lean manufacturing production management model to increase the efficiency of the production process of a MSME company in the chemical sector." Latin American and Caribbean Consortium of Engineering Institutions, 2019. http://hdl.handle.net/10757/656247.
Full textLastra, Fiorella, Nicolás Meneses, Ernesto Altamirano, Carlos Raymundo, and Javier M. Moguerza. "Production management model based on lean manufacturing for cost reduction in the timber sector in Peru." Springer, 2019. http://hdl.handle.net/10757/656242.
Full textAt present, timber is the only commodity whose demand will increase at worldwide levels. Peru, despite being one of the countries with the highest forest potential, cannot compete with countries such as Brazil and China due to high production costs. Therefore, the aim of this article is to develop a production management model based on Lean Manufacturing techniques to increase production capacity by improving processes and reducing costs. For this, Knowledge Management, Change Management, and Production Management were implemented. The model was validated in a Peruvian timber company, where a 49% reduction in the cleaning and organization time was achieved. Calibration periods were reduced by 61%, and preventive maintenance periods by 72%.
Castro-Chara, R., R. Valenzuela-Leandro, P. Chavez-Soriano, C. Raymundo-Ibañez, and F. Dominguez. "Production Management Model Based on Lean Manufacturing and Change Management Aimed at Reducing Order Fulfillment Times in Micro and Small Wooden Furniture Companies in Peru." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/656395.
Full textSatir, Benhur. "A General Production And Financial Planning Model For Integrated Poultry Organizations." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/105840/index.pdf.
Full textnder Integrated Poultry Incorporation using mathematical modelling techniques and statistical methods.
Hoffmann, Peter. "On virtual commissioning of manufacturing systems : proposals for a systematic VC simulation study methodology and a new simulation model building approach." Thesis, University of South Wales, 2016. https://pure.southwales.ac.uk/en/studentthesis/on-virtual-commissioning-of-manufacturing-systems(a4f3fdc4-56b5-4429-8432-b1975d09cf08).html.
Full textBuranajarukorn, Panu. "Human aspects of quality management in developing countries a case study and model development for Thai manufacturing SMEs /." Access electronically, 2006. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20070104.122115/index.html.
Full textFlores-Meza, S., J. Limaymanta-Perales, J. Eyzaquirre-Munarriz, C. Raymundo-Ibañez, and M. Perez. "Lean Manufacturing Model for production management to increase SME productivity in the non-primary manufacturing sector." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/656394.
Full textBen, Jbara Noah. "Risk management in supply chains : a simulation and model-based approach." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAI003.
Full textControlling risks is an important issue for companies. Far from being only the prerogative of natural disasters, the disruptions of today's supply chains can sometimes be caused by minor events amplified by the flaws of increasingly complex industrial organizations, causing severe economic losses.Risk management in supply chains is a recent theme and the proposed solutions are not yet able to meet the needs of practitioners. One of the solutions to analyse risks is using simulation. But, despite its effectiveness to cover the complexity of the chain, it still presents a major weakness which is the difficulty of implementation.The aim of this thesis is to facilitate and to adapt the simulation for risk analysis of supply chains. Thus, we have developed a modeling framework for simulation which enables an easy construction of models of supply chain structure, behavior and if the associated risks. This is done through the proposition of a set of meta-models and libraries, defined on the basis of the SCOR reference model. In addition, we proposed a translation guide for the translation of the conceptual model of supply chains into a simulation model and enabling testing risk scenario. Additionaly, we developed a library of simulation modules.A case study was conducted and the results show the relevance of the proposed approach
Barzola-Cisneros, Víctor, Jose Calderon-Tirado, Gino Viacava-Campos, and Daniel Aderhold. "Production model to increase productivity and delivery compliance in the peruvian textile sector by applying value stream mapping, 5s and flexible production systems." Springer, 2021. http://hdl.handle.net/10757/656024.
Full textThe Peruvian textile industry is a highly competitive market and is one of the main economic engines of the country. The sector provides more than 463 thousand jobs and represents 7.4% of the GDP. Most of the companies, mostly family businesses, do not have enough knowledge to implement a management model according to productivity standards and expected level of service. This article proposes a production model for the clothing industry based on Lean management, combining SIPOC, VSM, 5S techniques and a production system to increase profitability in the short term and make it sustainable in time. The model is validated by a case study in a representative company of the sector. The proposed activities were monitored through the study of work indicators, in which the results indicate an increase in productivity by 59% and the fulfillment by 48%.
Andersson, Carl. "Designing a lean manufacturing model for Johnson Controls SA." Thesis, Nelson Mandela Metropolitan University, 2006. http://hdl.handle.net/10948/188.
Full textHuamán, Jonathan, José Llontop, Carlos Raymundo, and Francisco Dominguez. "Production Management Model Based on Lean Manufacturing Focused on the Human Factor to Improve Productivity of Small Businesses in the Metalworking Sector." Springer Verlag, 2020. http://hdl.handle.net/10757/656120.
Full textMicro and small businesses in the metalworking sector present a high percentage of informality, and the majority of their production processes are not documented nor standardized. The production approach of Toyota, the enterprise-resource-planning system, and the lean manufacturing system were created for large organizations with sufficient financial resources to successfully implement these models. However, the human factor is a critical component in implementing these models. Therefore, a production management model has been proposed, which is based on lean manufacturing and focuses on the human factor, to increase productivity in the production area of a metalworking company, a small business. The result was that the company’s mentality changed, reaching a productivity of 70% through the use of lean manufacturing tools in the production area.
Xing, Xuemin. "Ad-hoc recovery in workflow systems : formal model and a prototype system /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0035/MQ62442.pdf.
Full textAnderzon, Samuel, and Filip Davidsson. "Agile Practices in Production Development : Investigation of how agile practices may be applied in a production development context and what the expected effects are." Thesis, Jönköping University, JTH, Produktionsutveckling, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-53736.
Full textArrascue-Hernandez, G., J. Cabrera-Brusil, P. Chavez-Soriano, C. Raymundo-Ibañez, and M. Perez. "LEAN maintenance model based on change management allowing the reduction of delays in the production line of textile SMEs in Peru." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/656403.
Full textBolduc, Melanie B. "Long-term effects of habitat and management changes on steelhead production results from an individual-based model." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050406-112805/.
Full textOkaro, Ikenna Anthony. "An integrated model for asset reliability, risk and production efficiency management in subsea oil and gas operations." Thesis, University of Newcastle upon Tyne, 2017. http://hdl.handle.net/10443/3651.
Full textGomero-Campos, A., R. Mejia-Huayhua, C. Leon-Chavarri, C. Raymundo-Ibañez, and F. Dominguez. "Lean Manufacturing Production Management Model using the Johnson Method Approach to Reduce Delivery Delays for Printing Production Lines in the Digital Graphic Design Industry." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/656402.
Full textEden, Susanna, Sharon Megdal, Eylon Shamir, Karletta Chief, and Lacroix Kelly Mott. "Opening the Black Box: Using a Hydrological Model to Link Stakeholder Engagement with Groundwater Management." MDPI AG, 2016. http://hdl.handle.net/10150/618961.
Full textTan, Kwan "Brian" Yui. "Minimizing the impact of model changeovers at a medium-mix high-volume cellular-telephone production line." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/35477.
Full textIncludes bibliographical references (p. 79-80).
by Kwan "Brian" Y. Tan.
M.S.
Swanepoel, Jan Adriaan. "Modelling for integrated energy optimisation in cement production plants / J.A. Swanepoel." Thesis, North-West University, 2013. http://hdl.handle.net/10394/9701.
Full textThesis (MIng (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2013.
Sannö, Anna. "Model for change in production systems triggered by environmental requirements : considerations, drivers, key factors." Licentiate thesis, Mälardalens högskola, Innovation och produktrealisering, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-27644.
Full textINNOFACTURE - innovative manufacturing development
Cronje, Mercia. "Engineering process model: Detection of cycles and determination of paths." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2376.
Full textIn order to plan the engineering work of large construction projects efficiently, a model of the engineering process is required. An engineering process can be modelled by sets of persons, tasks, datasets and tools, as well as the relationships between the elements of these sets. Tasks are more often than not dependent on other tasks in the engineering process. In large projects these dependencies are not easily recognised, and if tasks are not executed in the correct sequence, costly delays may occur. The homogeneous binary relation “has to be executed before” in the set of tasks can be used to determine the logical sequence of tasks algebraically. The relation can be described by a directed graph in the set of tasks, and the logical sequence of tasks can be determined by sorting the graph topologically, if the graph is acyclic. However, in an engineering process, this graph is not necessarily acyclic since certain tasks have to be executed in parallel, causing cycles in the graph. After generating the graph in the set of tasks, it is important to fuse all the cycles. This is achieved by finding the strongly connected components of the graph. The reduced graph, in which each strongly connected component is represented by a vertex, is a directed acyclic graph. The strongly connected components may be determined by different methods, including Kosaraju’s, Tarjan’s and Gabow’s methods. Considering the “has to be executed before” graph in the set of tasks, elementary paths through the graph, i.e. paths which do not contain any vertex more than once, are useful to investigate the influence of tasks on other tasks. For example, the longest elementary path of the graph is the logical critical path. The solution of such path problems in a network may be reduced to the solution of systems of equations using path algebras. The solution of the system of equations may be determined directly, i.e. through Gauss elimination, or iteratively, through Jacobi’s or Gauss-Seidel’s methods or the forward and back substitution method. The vertex sequence of an acyclic graph can be assigned in such a way that the coefficient matrix of the system of equations is reduced to staggered form, after which the solution is found by a simple back substitution. Since an engineering process has a start and an end, it is more acyclic than cyclic. Consequently we can usually reduce a substantial part of the coefficient matrix to staggered form. Using this technique, modifications of the solution methods mentioned above were implemented, and the efficiency of the technique is determined and compared between the various methods.
Fang, Yuan, and 方媛. "A cost-based model for optimising the construction logisticsschedules." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46080351.
Full textCuatrecasas, Castellsagués Oriol. "Caracterització i evolució dels sistemes de producció basats en el Lean Management." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/405586.
Full textEls sistemes de producció basats en la filosofia lean han anat guanyant protagonisme com una ruta freqüent i exitosa de millora per a les empreses. Adoptar un sistema de producció lean, de la manera més convenient , es una decisió clau, ja que aquestes practiques, ajuden a les organitzacions a millorar seguretat, qualitat, temps d'entrega, i costos. Des de que Toyota va mostrar al món un manera de gestionar diferent, el sector de l'automoció en el seu conjunt va ser pioner en l'adopció del lean, i continua amb el lideratge en el desenvolupament deis Sistemes de Producció lean. Tot i que el lean no ha pogut ser descrit amb consens pels diferents autors, aquest treball prova d'investigar una visió no fixa del lean, és a dir analitzar l'evolució i la similitud al llarg del temps deis Sistemes de Producció deis fabricants d'automòbils. Comparant-ne no una definició de Sistema de Producció lean, estàtica amb una altra, sinó una evolució d'un Sistema de Producció, amb una altra. Aquesta investigació realitza una amplia revisió de la literatura per trobar un grup reduït d'eines, mètodes, principis i cultura, una parametrització i un anàlisi deis sistemes de producció lean que utilitzen els fabricants de vehicles, i analitza i valida les successives iteracions amb el focus group. Mentre que l'evolució deis aspectes teòrics que puguin representar les diverses perspectives dels sistemes de producció lean es troben a la literatura, l'evolució deis aspectes tècnics es troben a cada un deis Sistemes de Producció de cada fabricant. La investigació deis sistemes de cada fabricant és realitzada a partir de la documentació aportada pels actors més influents, i pels fabricats amb més representació al mercat, i completada per una entrevista a un responsable de cada productor. Així fonamentat en una triangulació a partir de l'anàlisi de la literatura, els Sistemes de Producció aportats pels fabricants de vehicles, i les successives iteracions amb un focus group, aquest treball presenta una formulació i descripció de l'evolució deis Sistemes de Producció lean, que dona resposta al objectiu plantejat en forma d'un model semicircular d'evolució basat en els objectius a assolir per part del propi Sistema de Producció. A banda d'aquests resultats, aquest camí i aquest model descrit pel sector de fabricants de vehicles, pot ser seguit per altres sectors econòmics o organitzacions individuals.
G, Damacen, and Gianella Damacen. "Model of integration of lean tools and knowledge management to improve the production process in a metal-mechanic company." IEOM Society, 2018. http://hdl.handle.net/10757/624675.
Full textIn the new context of globalization, large manufacturing companies are forced to improve their production processes, so they need to design and apply methodologies that align with this trend. However, these practices are not applied in SMEs with similar problems, which mainly influence the timely delivery of their products and especially in the metal mechanic sector. Therefore, this article proposes the design of an integration model of Lean Tools and Knowledge Management, whose methodology is composed of 4 phases; in phase 0, the awareness and analysis of the current situation is carried out, in the first phase knowledge management is applied (design, development, implementation and sustainability), in phase 2, the Lean tools are implemented, initiating the application of the 5's, followed by standardized work and then by Total Productive Maintenance; finally in phase 3, the analysis and control of the results obtained. The model was validated in a metal-mechanic SME in Peru where an increase in production of 20% was obtained, an improvement of 30% in the training and training of the person and a 14% improvement in the overall efficiency of the team.
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Alvarado, Lizeth, Juan Díaz, Juan Quiroz, and Carlos Raymundo. "Basic production planning and control model based on process management to increase the productivity of mango MSEs in Casma." Springer Verlag, 2020. http://hdl.handle.net/10757/656119.
Full textThe department with the greatest economic dependence on the fruit is Ancash, and the Province of Casma is most important in production, as it only produces mango; however, at the productivity level, is a marked difference of 8.2 t/ha compared to the highest worldwide producer, Mexico. Taking this data into consideration, an analysis of the MSEs producing mango in Casma was conducted and problems were seen in the management of resources and processes, both at the levels of planning and control. Considering the problems of MSEs from Casma, a basic Production Planning and Control model was designed based on Process Management and agricultural best practices. The model consists of applying process management tools, such as the flow diagram, the SIPOC turtle, data sheet indicators, procedures, and formats for each sub-process, all with the aim of better understanding the proposal’s development and increasing the productivity of MSEs.