Newsletter

Weiss, Elliott N.

View as
Sort by
Display per page

A Brief Note on Process Capability

Process 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 ...

A Brief Note on the Theory of Constraints

This note provides detailed guidance for analyzing a complex business problem using the systems thinking tools: reference behavior patterns, systems archetypes, causal-loop diagrams, and stock-flow maps. The step by step guidance is intended to help a systems thinker arrive at a clear, organized outcome, such as a presentation to a client or a professional modeler. The writing process provides a f ...

A Pediatric Emergency Department at Lynchburg General Hospital

The emergency department (ED) at Lynchburg General Hospital (LGH) was operating at well over its capacity, and too many patients were leaving without being seen by a doctor. Chris Thomson, chairman and medical director of the LGH-ED, was charged with bringing the numbers back on track, and he began by ramping up the ED's Lean program. Thomson and the ED's new process engineer, Jennifer Stowers, se ...

Abby Hamilton

This case provides students with an opportunity to apply cost-modeling techniques in the context of consolidating freight costs. The case allows students to test their analytical skills using regression analysis to determine optimal consolidation of LTL truck shipments. It should be used with the technical notes OM-1254, OM-1255, and OM-1256. ...

Airflow Aircraft (Abridged)

A manufacturer of turboprop airplanes must evaluate its spare-part inventory control system. Economic order quantities, safety stocks, and reorder points must be calculated, and issues regarding relevant costs and performance measures must be addressed. ...

Airflow Aircraft, Inc.

This case requires students to evaluate an inventory-control system for a provider of spare parts for a regional turboprop-airplane manufacturer. Students must also calculate economic order quantities, safety stocks, and reorder points. Issues regarding relevant costs and performance measures are also addressed. ...

Beef-Noodle Casserole

Tom Jenkins, manager of the filling line for Amore Frozen Foods' beef-noodle-casserole product, must determine the proper fill rate and production rate for three filling machines. An on-line simulation requires the student to perform a number of tests using statistical design of experiments to determine the proper allocation of product to machine and the optimal settings for each machine.

...

By Air or By Sea?

An OEM motor manufacturer is deciding where to locate a new manufacturing line for one of its customers. The options are China, Eastern Europe, Mexico and the U.S. Information is given to begin an initial location analysis. The decision focus of the case concerns transferring the line (after a 6-month to 2 year start-up phase) by either airfreight or sea freight. Students must calculate the freigh ...

Capacity of Asynchronous Single-Piece Flow Lines: A Quiz

This technical note provides a pedagogical overview of management communication for MBA education. ...

Carol L. Carroll (A)

Carol L. Carroll, a second-year MBA candidate at the Darden School of Business, had decided to write a business plan about her latest idea for a new venture. Carroll's idea was to start a personal errand service for professionals in Philadelphia, Pennsylvania. Besides the academic credit she would receive for the plan, Carroll also thought she might actually open such a business one day. ...

Chandpur Enterprises Limited, Paper Division

One month after joining the family business -- a recycled paper manufacturer in Chandpur, India -- a recent graduate must confront an arcane inventory ordering process that has led to both a stock-out and an overstock within six months of each other. This disguised case requires that students cope with the variable nature of a supply chain for recovered waste paper in addition to logistic and proj ...

CityBook Services, Ltd.

One of Israel's most important assets was its relatively highly educated population, which included many native English speakers. The founders of CityBook Services, Ltd., determined that one of the greatest untapped sources of potential workers was the female population of the ultra-Orthodox Haredi community, most of whom did not hold jobs outside the home. By structuring a work environment that m ...
Stay Connected: