Case studies

Assumes an understanding of statistical process control and focuses on highlighting the usefulness of Six Sigma quality. Focuses on the issue of a worn bearing at a tire manufacturer leading to a mean shift (while producing defectives). Shows how a Six Sigma process would quickly detect the mean shift while producing fewer defectives.

To introduce the methodology of statistical process control and to illustrate the value of Six Sigma.

Supplements the (A) case.

In 2012 several retailers, including Amazon and Walmart, experimented with same-day delivery. Home delivery of pizzas had been a very successful model in the United States and had been copied all over the world. In contrast, home delivery attempts by companies like Kozmo and Urbanfetch had failed and both companies went bankrupt. The goal of this case is to build a framework that helps students identify the factors that influence the success or failure of home delivery models.

After analyzing and discussing the case, students should be able to:

• Build a basic framework identifying supply chain drivers that are influenced by a firm's decision to offer same-day home delivery

• Understand the tradeoffs that influence the success of a same-day home delivery model

• Identify qualitative factors to be considered when deciding between non-U.S. facility locations, including transportation time variability, consumer perceptions, and cultural differences

Build a basic framework identifying supply chain drivers that are influenced by a firm's decision to offer same-day home delivery

Understand the tradeoffs that influence the success of a same-day home delivery model

Identify qualitative factors to be considered when deciding between non-U.S. facility locations, including transportation time variability, consumer perceptions, and cultural differences

The case illustrates the application of the concepts of demand elasticities of an agricultural product with high protein content - pulses. It considers the current situation where a good monsoon has raised hopes for a bumper crop of pulses in India. From a deficit of about 20% met by imports, the county now is looking at attaining self-sufficiency. Public Policy options such as exports, imports or allowing domestic price adjustments or changing the minimum support price (MSP) in this regard are also considered.

ThinkAlike, a fictitious marketing consulting firm, was asked by TiVo to segment the market for its new digital video recorder (DVR) product. Students are asked to analyze realistic data and generate segments that will be useful for TiVo s marketing strategy.

Pancho’s Burritos is a high-end fast-food restaurant located in Charlottesville, Virginia. Due to a recent surge in customers, the lines at the restaurant during peak hours are becoming very long and causing excessive customer waiting. To improve current customer wait times and plan for future growth requirements, Francisco “Pancho” Escoba, the proprietor, wants to get a better understanding of the current operational capacity. The key decision Escoba must make is how to redesign his burrito-making process to increase the capacity and reduce customer wait time.

Suitable for an undergraduate or MBA course, the case can be used in an introductory operations course to teach capacity analysis and queuing. The case provides a relatable and understandable setting for students without an operations background to gain a better grasp of basic course concepts and illustrates how interactions between capacity and queuing affect one another. As an exam or review case it works well because it contains standard process calculations that all students should know how to perform.

Two recently graduated MBA students are tasked with developing an ad-serving learning algorithm for a mobile ad-serving company. The case illustrates the way in which hypotheses can be tested in an A/B format or “horse race” in order to establish customer preferences and superior profitability. The case was written for a course elective covering hypothesis testing.