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Managing Inventories: Determining Order Quantity
Freeland, James R.; Landel, Robert D.; Weiss, Elliott N.Technical Note DARDEN-OM-1395-EService and Operations ManagementCycle-stock ordering decisions, including cost-element considerations, are examined. Students will see that as materials flow from suppliers through a firm's operations to customers, the cost-effectiveness of inventory investment is improved by the development and implementation of an inventory management system.Starting at €8.20
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A Brief Note on Process Capability
Weiss, Elliott N.Technical Note DARDEN-OM-1439-EService and Operations ManagementProcess capability, as revolutionized by Motorola, can be defined as the extent to which a process's natural variation falls within specifications. This note is a succinct introduction to the process capability ratio, which compares set specifications against the three standard deviations on either side of the process mean--six in total, referred to as Six Sigma. This introduction assumes a normal distribution of observations and a process that i...Starting at €8.20
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Queue Management: Elimination, Expectation, and Enhancement
Weiss, Elliott N.; Tucker, ChadTechnical Note DARDEN-OM-1581-EService and Operations ManagementThe mathematical relationships predicting average waiting time as a function of arrival patterns, service time distributions, number and types of servers, and various queue disciplines are well known. In this note, we address the problem of managing queues by managing perceptions of waiting. Basic operations-management principles can easily address issues of fairness: form one line instead of many; apply first-come, first-served principles (unles...Starting at €8.20
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A Glossary of Lean Terms
Weiss, Elliott N.; Russell, Harry "Mac"Technical Note DARDEN-OM-1334-EService and Operations ManagementLean has been defined as the "relentless pursuit of the elimination of waste." This technical note provides a glossary of terms concerning Lean implementation, including muda, muri, nura, kanban, andon board, SMED, poka-yoke, 5S, gemba, takt time, heijunka, and kaizen.Starting at €8.20
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Managing Inventories: The Reorder Point System
Freeland, James R.; Landel, Robert D.; Weiss, Elliott N.Technical Note DARDEN-OM-1394-EService and Operations ManagementInventory replenishment concepts and tools are described.Starting at €8.20
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Visualizing Process Behavior
Weiss, Elliott N.; Tucker, ChadTechnical Note DARDEN-OM-1541-EService and Operations ManagementProcess behavior charts—also called control charts or Shewhart charts after their creator—provide a means to interpret data as they are generated. While many statistical methods and graphs are useful only for post hoc analysis, control charts provide a visual and statistically sound basis for identifying issues in a process as they arise, ideally allowing prevention of failures before they occur.Starting at €8.20
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Kaizen in Translation: Suggestion Systems Across Cultures
Weiss, Elliott N.; Stevenson, DonaldTechnical Note DARDEN-OM-1544-EService and Operations ManagementThough the world has recently been described as "flat," we contend that it is also "lumpy." Some managerial practices may be universal (i.e., applicable across all cultures), while others may have to be customized for location. In this technical note, we discuss the application of kaizen principles across cultures. When managers analyze kaizen with cultural values in mind, they may find the key to its practical success, and where relevant values ...Starting at €8.20
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Lean as a Universal Model of Excellence: It Is Not Just a Manufacturing Tool!
Weiss, Elliott N.; Stevenson, Donald; English, AustinTechnical Note DARDEN-OM-1562-EService and Operations ManagementThis is a technical note that describes the history of Lean and explains why it is not just a manufacturing tool. It is used in Darden’s "Management of Service Operations" course elective.Starting at €8.20
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A3 Thinking
Weiss, Elliott N.; English, AustinTechnical Note DARDEN-OM-1542-EService and Operations ManagementThis brief note provides a description of the A3 report, a classic problem-solving methodology associated with the Toyota Production System. A3 thinking may be used for many activities, including problem solving, proposal writing, and status reporting. The six elements of an A3 report are described briefly.Starting at €8.20
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A Brief Note on Hoshin Kanri: Strategy Deployment
Weiss, Elliott N.; English, AustinTechnical Note DARDEN-OM-1710-EService and Operations ManagementHoshin kanri (HK), or strategy deployment, has been an integral part of the company management practices of some of the most successful Lean-practicing organizations. The purpose of this note is to give a very quick introduction to how it has been successfully used in small and medium-sized value streams to inject strategic meaning and tactical understanding to operational strategies and improvement plans. Done well, HK is an extraordinary tool...Starting at €8.20