Browsing Technical Reports by Title
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Detecting Malfunctions in Dynamic Systems
(199903)This article outlines some of the fundamental concepts of systems monitoring and general principles for the design of monitors to detect certain malfunctions in the powertrain system that may cause excessive emissions 
Discrete ProportionalIntegral Control with Constrained Adjustment
(199402)It is well known that discrete feedback control schemes chosen to produce minimum mean square error at the output can require excessive manipulation of the compensating variable. Also very large reductions in the manipulation ... 
Discriminant Upset Analysis
(198805)This report presents an application of discriminant analysis in setting rules for early warning indicators of process upsets in wastewater treatment plant operation. 
Discrimination and Criticism of SingleResponse Models
(1996)Formulas are developed for assessing the probability and adequacy of rival models fitted to a common data set. Cases of full, partial and minimal variance information are treated. The use of the formula is demonstrated ... 
A Discussion of Scientific Methods for Setting Manufacturing Tolerances
(199304)Several traditional and newer techniques for setting manufacturing tolerances are discussed. The traditional methods include worst case, statistical case, and proportional and constant factor scaling. Newer methods, such ... 
Drastic Changes for Western Management
(198606)This report is a compact summary of the most important points that Dr. W. Edwards Deming has been making about changes that must be made by American businesses if they are to be competitive. 
Eliminating Complexity from Work: Improving Productivity by Enhancing Quality
(198607)Increasing quality does not increase costs; in fact, it is poor quality that increases "complexity," which in turn increases cost and decreases productivity. 
Fast Cycle Change in KnowledgeBased Organizations: Building Fundamental Capability for Implementing Strategic Transformation
(199706)This paper discusses the experience of a knowledgebased organization in the pharmaceutical industry in building a fundamental capability for implementing strategic transformation. The organization developed and implemented ... 
Fault Diagnosis of Multistage Manufacturing Processes by Using State Space Approach
(200204)This report presents a methodology for diagnosis of fixture failures in multistage manufacturing processes (MMP). 
Feedforward as a Supplement to Feedback Adjustment in Allowing Feedstock Changes
(2002)This paper considers the complementary use of feedback and feedforward adjustments to compensate for anticipated step changes in the process mean as may be necessary in a manufacturing process each time a new batch of ... 
Five Ways Statistical Tolerancing Can Fail and What to Do About Them
(199709)In this article we explore the general nonrobustness of traditional root sum of squares statistical tolerancing and describe, in particular, how it can fail. These are [1] deficiencies in the functional model, [2] lower ... 
Further Details of an Analysis for Unreplicated Fractional Factorials
(198702)Some important implications and statistical details of Box and Meyer's formal approach to the analysis of unreplicated fractional factorial experiments. 
How to Reduce Costs Using a Tolerance Analysis Formula Tailored to Your Organization
(199704)In volume production, a few pennies per unit can add up quickly. In such cases, it may be worth considering whether cheaper components might be used without jeopardizing quality. One element in many tolerance analyses ... 
Human Factors ESecurity Workgroup Report of Findings
(200304)One of the greatest barriers to effective esecurity are the human and organizational factors that contribute to and cause the technical and social vulnerabilities of an organization's computer and information system. The ... 
Identification of Active Factors in Unreplicated Fractional Factorial Experiments
(198702)How to pinpoint the most likely explanation for the results of unreplicated fractional factorial experiments. 
Improving Team Effectiveness
(199704)Much has changed since teams became popular in the 1980's. Teams are now an established approach for getting work done, and organizations have learned important strategies for making teams effective. But barriers to team ... 
Influence of the Sampling Interval, Decision Limit and Autocorrelation on the Average Run Length in Cusum Charts
(199809)This paper shows how the average run length (ARL) for a onesided Cusum chart varies as a function of the length of the sampling interval between consecutive observations, the decision limit for the Cusum statistic, and ... 
Integration of Techniques in Process Development
(1990)The reasons for the need of an iterative approach to experimentation are explained. The consequent implications in the use of screening designs (fractional factorials and other orthogonal arrays), response surface designs ... 
An Investigation of OAbased Methods for Parameter Design Optimization
(1990)There exists simpler alternatives for analyzing the results of a designed experiment than the orthogonal array methods proposed by Taguchi. 
An Investigation of the Method of Accumulation Analysis
(198612)A discussion of Taguchi's method for analyzing ordered categorical data.