In order to illustrate how various areas of operations research interact in an actual manufacturing scenario, we propose the use of a strawberry jam-making supply chain model consisting of an inventory partner, a production scheduling partner and a delivery partner. The problem is to minimise the overall supply chain cost consisting of inventory order cost, inventory unit purchasing cost, inventory storage cost, transport booking cost, jam storage cost, delivery travel distance cost and jam arrival earliness and tardiness costs. We report on how we devised and taught this case to First Year Mechanical and Manufacturing Engineering students at the University of Melbourne.
{"title":"Getting out of a Strawberry Jam: An Introduction to Supply Chain Analysis","authors":"Heng-Soon Gan, Kwanniti Khammuang, A. Wirth","doi":"10.1287/ITED.6.3.20","DOIUrl":"https://doi.org/10.1287/ITED.6.3.20","url":null,"abstract":"In order to illustrate how various areas of operations research interact in an actual manufacturing scenario, we propose the use of a strawberry jam-making supply chain model consisting of an inventory partner, a production scheduling partner and a delivery partner. The problem is to minimise the overall supply chain cost consisting of inventory order cost, inventory unit purchasing cost, inventory storage cost, transport booking cost, jam storage cost, delivery travel distance cost and jam arrival earliness and tardiness costs. We report on how we devised and taught this case to First Year Mechanical and Manufacturing Engineering students at the University of Melbourne.","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"20-27"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.20","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper reports an innovative use of a popular operations management case to illustrate the usefulness and application of a powerful analysis technique called Data Envelopment Analysis DEA. DEA is often the only available tool that enables managers to evaluate the relative efficiencies of various business units in the presence of multiple performance measures. Applichem is a case study about a multinational chemical company, with six manufacturing plants located all over the world. The manufacturing plants' efficiencies are highly varied and in the presence of excessive capacity, management is having a difficult time determining which plants must be shut down. This case is often studied from an optimization perspective, with the objective of matching customer demands with plant capacities at the lowest possible cost. The case involves multiple measures of performance e.g. labor cost, material cost, etc., which makes it ideal for introducing and demonstrating DEA from a practical perspective. This paper details how such an analysis can be presented in a business classroom.
{"title":"Teaching Data Envelopment Analysis using Applichem---New Perspective on a Popular Operations Case","authors":"S. Gavirneni","doi":"10.1287/ITED.6.3.38","DOIUrl":"https://doi.org/10.1287/ITED.6.3.38","url":null,"abstract":"This paper reports an innovative use of a popular operations management case to illustrate the usefulness and application of a powerful analysis technique called Data Envelopment Analysis DEA. DEA is often the only available tool that enables managers to evaluate the relative efficiencies of various business units in the presence of multiple performance measures. Applichem is a case study about a multinational chemical company, with six manufacturing plants located all over the world. The manufacturing plants' efficiencies are highly varied and in the presence of excessive capacity, management is having a difficult time determining which plants must be shut down. This case is often studied from an optimization perspective, with the objective of matching customer demands with plant capacities at the lowest possible cost. The case involves multiple measures of performance e.g. labor cost, material cost, etc., which makes it ideal for introducing and demonstrating DEA from a practical perspective. This paper details how such an analysis can be presented in a business classroom.","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"38-45"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.38","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The great majority of those who teach operations research or management science at the college or graduate levels have no formal training in teaching and do not regularly read articles or books about teaching. These facts are well known but they raise fundamental questions for anyone interested in scholarly activity related to teaching MS/OR. Why do those of us who teach MS/OR spend so little time learning about teaching? Why is there essentially no literature (until recently) on teaching our subjects? Can there be a scholarship of teaching MS/OR? And the most provocative question: can the scholarship of teaching MS/OR ever deserve to be called research ?
{"title":"Review of Maryellen Weimer: Enhancing Scholarly Work on Teaching and Learning Jossey-Bass 2006","authors":"S. Powell","doi":"10.1287/ITED.6.3.48","DOIUrl":"https://doi.org/10.1287/ITED.6.3.48","url":null,"abstract":"The great majority of those who teach operations research or management science at the college or graduate levels have no formal training in teaching and do not regularly read articles or books about teaching. These facts are well known but they raise fundamental questions for anyone interested in scholarly activity related to teaching MS/OR. Why do those of us who teach MS/OR spend so little time learning about teaching? Why is there essentially no literature (until recently) on teaching our subjects? Can there be a scholarship of teaching MS/OR? And the most provocative question: can the scholarship of teaching MS/OR ever deserve to be called research ?","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"48-54"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.48","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Figure 1 represents an eight-storey building with three elevators. The shaded cells represent those floors at which a particular elevator calls. Notice that all elevators call at both top and bottom floors and four floors in between. It is possible, given this configuration, to travel between any two floors by riding a single elevator. The question is, if each lift called at three floors in between top and bottom, how many lifts would be required such that any two floors are connected by a single elevator?
{"title":"A Tokyo Elevator Puzzle","authors":"M. Chlond","doi":"10.1287/ITED.6.3.55","DOIUrl":"https://doi.org/10.1287/ITED.6.3.55","url":null,"abstract":"Figure 1 represents an eight-storey building with three elevators. The shaded cells represent those floors at which a particular elevator calls. Notice that all elevators call at both top and bottom floors and four floors in between. It is possible, given this configuration, to travel between any two floors by riding a single elevator. The question is, if each lift called at three floors in between top and bottom, how many lifts would be required such that any two floors are connected by a single elevator?","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"55-59"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.55","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Supply chain management is a topic that many practitioners and students generally find difficult to understand Boudette [Boudette, N. 2005. Chrysler offers bonuses to dealers: Move to reduce inventory aims to close year strong, but the reaction is mixed. The Wall Street Journal December 13]. The authors present a supply chain game that they have found to be an effective tool to increase student interest in and comprehension of supply chain management. The supply chain game literature is briefly reviewed. The poker chip game is discussed with respect to the well-known Beer Game. The poker chip game is a multi-product, multi-customer, multi-echelon, stochastic supply chain game used to teach the problems of traditional push models economic order quantity/reorder point and Min-Max inventory models and the elements of the new pull models Just inTime and Theory of Constraints.
供应链管理是一个许多从业者和学生普遍觉得难以理解的话题[Boudette, N. 2005]。克莱斯勒向经销商提供奖金:减少库存的举措旨在年末表现强劲，但反应不一。华尔街日报[12月13日]。作者提出了一个供应链游戏，他们发现这是一个有效的工具，以提高学生对供应链管理的兴趣和理解。本文简要回顾了供应链博弈的相关文献。以著名的啤酒游戏为例，讨论了扑克筹码游戏。扑克筹码游戏是一个多产品、多客户、多梯队的随机供应链游戏，用于教授传统的推动模型、经济订单数量/再订货点和最小-最大库存模型的问题，以及新拉动模型的要素及时交货和约束理论。
{"title":"The Poker Chip Game: A Multi-product, Multi-customer, Multi-echelon, Stochastic Supply Chain Network Useful for Teaching the Impacts of Pull versus Push Inventory Policies on Link and Chain Performance","authors":"James F. Cox, E. D. Walker","doi":"10.1287/ITED.6.3.3","DOIUrl":"https://doi.org/10.1287/ITED.6.3.3","url":null,"abstract":"Supply chain management is a topic that many practitioners and students generally find difficult to understand Boudette [Boudette, N. 2005. Chrysler offers bonuses to dealers: Move to reduce inventory aims to close year strong, but the reaction is mixed. The Wall Street Journal December 13]. The authors present a supply chain game that they have found to be an effective tool to increase student interest in and comprehension of supply chain management. The supply chain game literature is briefly reviewed. The poker chip game is discussed with respect to the well-known Beer Game. The poker chip game is a multi-product, multi-customer, multi-echelon, stochastic supply chain game used to teach the problems of traditional push models economic order quantity/reorder point and Min-Max inventory models and the elements of the new pull models Just inTime and Theory of Constraints.","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"3-19"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Introduction to the Special Issue: Integrating OR in Teaching Supply Chain Management","authors":"D. L. Woodruff, S. Voß","doi":"10.1287/ITED.6.3.1","DOIUrl":"https://doi.org/10.1287/ITED.6.3.1","url":null,"abstract":"","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Supply chain management is one of the most complex business disciplines, comprising activities and interactions within and between many of the traditional functional areas of a firm and their channel partners. No longer can a company place its entire focus on its own operations because long-term success is becoming increasingly dependent on actions and decisions of upstream and downstream firms in the supply chain. Organizations that effectively collaborate with their supply chain partners position themselves for success in 21st-century markets. In order to prepare our students to make decisions in this complex environment, educators in operations research and management science must introduce students to the important interactions which are essential to effective supply chain management. We have developed a classroom supply chain simulation incorporating Lego™ bricks to highlight the flow of materials, products, and information through the channel. Students assume the responsibilities of various supply chain functions and must work together to provide finished products according to a production schedule and a rush customer order. The exercise was designed for an undergraduate introductory course in supply chain management, transportation and logistics, or management science in a business or industrial engineering school. It reinforces lectures and discussions about the different functional areas of the supply chain and serves to energize students about the remainder of their curriculum in the field. The follow-up assignments included with the simulation allow students to execute the major steps of the production planning process within the familiar context of the company used in the simulation exercise.
{"title":"The Building Blocks of Supply Chain Management","authors":"M. Drake, J. Mawhinney","doi":"10.1287/ITED.6.3.28","DOIUrl":"https://doi.org/10.1287/ITED.6.3.28","url":null,"abstract":"Supply chain management is one of the most complex business disciplines, comprising activities and interactions within and between many of the traditional functional areas of a firm and their channel partners. No longer can a company place its entire focus on its own operations because long-term success is becoming increasingly dependent on actions and decisions of upstream and downstream firms in the supply chain. Organizations that effectively collaborate with their supply chain partners position themselves for success in 21st-century markets. In order to prepare our students to make decisions in this complex environment, educators in operations research and management science must introduce students to the important interactions which are essential to effective supply chain management. \u0000 \u0000We have developed a classroom supply chain simulation incorporating Lego™ bricks to highlight the flow of materials, products, and information through the channel. Students assume the responsibilities of various supply chain functions and must work together to provide finished products according to a production schedule and a rush customer order. The exercise was designed for an undergraduate introductory course in supply chain management, transportation and logistics, or management science in a business or industrial engineering school. It reinforces lectures and discussions about the different functional areas of the supply chain and serves to energize students about the remainder of their curriculum in the field. The follow-up assignments included with the simulation allow students to execute the major steps of the production planning process within the familiar context of the company used in the simulation exercise.","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"28-37"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.28","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Gazogle Case","authors":"E. N. Weiss","doi":"10.1287/ITED.6.3.46","DOIUrl":"https://doi.org/10.1287/ITED.6.3.46","url":null,"abstract":"","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"46-47"},"PeriodicalIF":0.0,"publicationDate":"2006-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.3.46","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66521272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hurricane season presents an excellent illustration of a wide range of issues encountered in developing and responding to business forecasts. The high profile of hurricane forecasts---particularly during the 2004 season in which four hurricanes made landfall in Florida, and during the 2005 season when hurricane Katrina devastated New Orleans and the surrounding region---makes them a convenient, visible, and ideal illustrative classroom example. This paper outlines 25 business forecasting principles and their direct parallels in hurricane forecasting. This compilation has been successfully used by author as a basis for an in-class review of forecasting in an undergraduate operations management introductory course. A report of the positive student feedback and comparative test results is provided.
{"title":"Forecasting: Trying to Reason from Hurricane Season","authors":"B. Coleman","doi":"10.1287/ITED.6.2.1","DOIUrl":"https://doi.org/10.1287/ITED.6.2.1","url":null,"abstract":"Hurricane season presents an excellent illustration of a wide range of issues encountered in developing and responding to business forecasts. The high profile of hurricane forecasts---particularly during the 2004 season in which four hurricanes made landfall in Florida, and during the 2005 season when hurricane Katrina devastated New Orleans and the surrounding region---makes them a convenient, visible, and ideal illustrative classroom example. This paper outlines 25 business forecasting principles and their direct parallels in hurricane forecasting. This compilation has been successfully used by author as a basis for an in-class review of forecasting in an undergraduate operations management introductory course. A report of the positive student feedback and comparative test results is provided.","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.2.1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66520814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper we propose a simulation problem that can be used as an exercise in a simulation class using an excel add-on simulation package. Suppose that N objects computers, people, animals, plants are interacting in pairs. Every time unit for example, a second for a computer, a day or a week for people, each object randomly selects another object and contacts it. Suppose that one object is infected with a virus. How long will it take until all objects are infected? How many objects are infected after 5 time units? This process is a simplified model for the spread of AIDS among humans, computer viruses among computers, or any communicable disease among humans, animals, or plants.
{"title":"Simulating the Spread of a Virus in a Computer Network","authors":"Jihad Estrada, Z. Drezner","doi":"10.1287/ITED.6.2.32","DOIUrl":"https://doi.org/10.1287/ITED.6.2.32","url":null,"abstract":"In this paper we propose a simulation problem that can be used as an exercise in a simulation class using an excel add-on simulation package. Suppose that N objects computers, people, animals, plants are interacting in pairs. Every time unit for example, a second for a computer, a day or a week for people, each object randomly selects another object and contacts it. Suppose that one object is infected with a virus. How long will it take until all objects are infected? How many objects are infected after 5 time units? This process is a simplified model for the spread of AIDS among humans, computer viruses among computers, or any communicable disease among humans, animals, or plants.","PeriodicalId":37137,"journal":{"name":"INFORMS Transactions on Education","volume":"6 1","pages":"32-36"},"PeriodicalIF":0.0,"publicationDate":"2006-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1287/ITED.6.2.32","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66520667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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