James L. Sullivan, David Novak, Eric Hernandez and Nick Van Den Berg
This paper introduces a novel quality measure, the percent-within-distribution, or PWD, for acceptance and payment in a quality control/quality assurance (QC/QA) performance…
Abstract
Purpose
This paper introduces a novel quality measure, the percent-within-distribution, or PWD, for acceptance and payment in a quality control/quality assurance (QC/QA) performance specification (PS).
Design/methodology/approach
The new quality measure takes any sample size or distribution and uses a Bayesian updating process to re-estimate parameters of a design distribution as sample observations are fed through the algorithm. This methodology can be employed in a wide range of applications, but the authors demonstrate the use of the measure for a QC/QA PS with upper and lower bounds on 28-day compressive strength of in-place concrete for bridge decks.
Findings
The authors demonstrate the use of this new quality measure to illustrate how it addresses the shortcomings of the percent-within-limits (PWL), which is the current industry standard quality measure. The authors then use the PWD to develop initial pay factors through simulation regimes. The PWD is shown to function better than the PWL with realistic sample lots simulated to represent a variety of industry responses to a new QC/QA PS.
Originality/value
The analytical contribution of this work is the introduction of the new quality measure. However, the practical and managerial contributions of this work are of equal significance.
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David C. Novak, James L. Sullivan, Jeremy Reed, Mladen Gagulic and Nick Van Den Berg
The ability to measure and assess “quality” is essential in building and maintaining a safe and effective transportation system. Attaining acceptable quality outcomes in…
Abstract
Purpose
The ability to measure and assess “quality” is essential in building and maintaining a safe and effective transportation system. Attaining acceptable quality outcomes in transportation projects has been a reoccurring problem at both the federal and state levels, at least partially, as a result of poorly developed, inefficient or nonexistent quality assurance/quality control (QA/QC) processes. The purpose of this paper is to develop and implement a new QA/QC process that focuses on a novel double-bounded performance-related specification (PRS) and corresponding pay factor policy that includes both lower and upper quality acceptance and payment reward boundaries for bridge concrete.
Design/methodology/approach
The authors use historical data to design different payment scenarios illustrating likely industry responses to the new PRS, and select the single scenario that best balances risk between the agency and industry. The authors then convert that payment scenario to a pay factor schedule using a search heuristic and determine statistical compliance with the PRS using percent-within-limits (PWL).
Findings
The methodology offers an innovative approach for developing an initial set of pay factors when lifecycle cost data are lacking and the PRS are new or modified. An important finding is that, with a double-bounded PRS, it is not possible to represent pay factors using the simplified table PWL currently employed in practice because each PWL value occupies two separate positions in the payment structure – one above the design target and one below it. Therefore, a more detailed set of pay factors must be employed which explicitly specify the mean sample value and the design target. The approach is demonstrated in practice for the Agency of Transportation in state of Vermont.
Research limitations/implications
The authors demonstrate a novel approach for developing a double-bounded PRS and introduce a payment incentive/disincentive policy with the goal of improving total product quality. The new pay factor policy includes both a payment penalty below the contracted price for failing to meet a specified performance criterion as well as a payment premium above the contracted price that increases as the sample product specification approaches an “ideal” design value. The PRS includes both an upper and lower acceptance boundary for the finished product as opposed to only a lower tail acceptance boundary, which is the traditional approach.
Practical implications
The authors illustrate a research collaboration between academia and a state agency that highlights the role academic research can play in advancing quality management practices. The study involves the use of actual product performance data and is operational as opposed to conceptual in nature. Finally, the authors offer important practical insights and guidance by demonstrating how a new PRS and pay factor policy can be developed without the use of site-specific historical lifecycle cost (LCC) data that include detailed manufacturing, producing and placement cost data, as data related to product performance over time. This is an important contribution, as the development and implementation of pay factor policies typically involve the use of historical LCC data. However, in many cases, these data are not available or may be incomplete.
Social implications
With the new PRS and pay factor schedule, the Agency expects shrinkage and cracking on bridge decks to decrease along with overall maintenance and rehabilitation costs. A major focus the new PRS is to actively involve industry partners in quality improvement efforts.
Originality/value
The authors focus on a major modification to an existing QA/QC process that involves the development of a new PRS and an associated pay factor policy undertaken by the Vermont Agency of Transportation. The authors use empirical data to develop a novel double bounded PRS and payment schedule for concrete and offer unique operational/practical insight and guidance by demonstrating how a new PRS and pay factor policy can be developed without the use of site-specific historical LCC. Typically, PRS for in-place concrete have only a lower tail acceptance boundary.
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Isabelle Brault, Jean-Louis Denis and Terrence James Sullivan
Introducing change is a difficult issue facing all health care systems. The use of various clinical governance levers can facilitate change in health care systems. The purpose of…
Abstract
Purpose
Introducing change is a difficult issue facing all health care systems. The use of various clinical governance levers can facilitate change in health care systems. The purpose of this paper is to define clinical governance levers, and to illustrate their use in a large-scale transformation.
Design/methodology/approach
The empirical analysis deals with the in-depth study of a specific case, which is the organizational model for Ontario’s cancer sector. The authors used a qualitative research strategy and drew the data from three sources: semi-structured interviews, analysis of documents, and non-participative observations.
Findings
From the results, the authors identified three phases and several steps in the reform of cancer services in this province. The authors conclude that a combination of clinical governance levers was used to transform the system. These levers operated at different levels of the system to meet the targeted objectives.
Practical implications
To exercise clinical governance, managers need to acquire new competencies. Mobilizing clinical governance levers requires in-depth understanding of the role and scope of clinical governance levers.
Originality/value
This study provides a better understanding of clinical governance levers. Clinical governance levers are used to implement an organizational environment that is conducive to developing clinical practice, as well as to act directly on practices to improve quality of care.
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Structural explanations of racial stratification are weakened by a failure to in‐corporate attitudinal and ideological factors into their theories. But attitudinal researchers…
Abstract
Structural explanations of racial stratification are weakened by a failure to in‐corporate attitudinal and ideological factors into their theories. But attitudinal researchers have tended to focus on racial prejudice and tolerance and neglected non‐racially specific beliefs that support white dominance. This article reviews the limits of each approach, discusses the problem of ideology for race relations theory and explores how, through the analysis of ideology, attitudinal and structural analysis might be synthesised. Findings on the relation between adherence to individualist explanations of poverty, perceptions of racial discrimination in employment and attitudes toward affirmative action programs are used to exemplify the power of class ideologies in shaping beliefs about racial inequality and vice versa. An exploration of ideologies of local autonomy and attitudes toward public housing and residential desegregation might elicit similar findings.
Bruce D. Meyer and James X. Sullivan
We examine the relationship between the business cycle and poverty for the period from 1960 to 2008 using income data from the Current Population Survey and consumption data from…
Abstract
We examine the relationship between the business cycle and poverty for the period from 1960 to 2008 using income data from the Current Population Survey and consumption data from the Consumer Expenditure Survey. This new evidence on the relationship between macroeconomic conditions and poverty is of particular interest, given recent changes in antipoverty policies that have placed greater emphasis on participation in the labor market and in-kind transfers. We look beyond official poverty, examining alternative income poverty and consumption poverty, which have conceptual and empirical advantages as measures of the well-being of the poor. We find that both income and consumption poverty are sensitive to macroeconomic conditions. A 1 percentage point increase in unemployment is associated with an increase in the after-tax income poverty rate of 0.9–1.1 percentage points in the long run, and an increase in the consumption poverty rate of 0.3–1.2 percentage points in the long run. The evidence on whether income is more responsive to the business cycle than consumption is mixed. Income poverty does appear to be more responsive using national level variation, but consumption poverty is often more responsive to unemployment when using regional variation. Low percentiles of both income and consumption are sensitive to macroeconomic conditions, and in most cases, low percentiles of income appear to be more responsive than low percentiles of consumption.
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Peter Hines, Nick Rich, John Bicheno, David Brunt, David Taylor, Chris Butterworth and James Sullivan
Value Stream Management is a new strategic and operational approach to the data capture, analysis, planning and implementation of effective change within the core cross‐functional…
Abstract
Value Stream Management is a new strategic and operational approach to the data capture, analysis, planning and implementation of effective change within the core cross‐functional or cross‐company processes required to achieve a truly lean enterprise. This paper describes the method in detail including a summary of the previous Value Stream Mapping approach and its weaknesses. The new approach involves a strategic review of a business or supply chain's activities, the delimitation of key processes and the mapping of these processes. A description of how to analyze and synthesize these data is followed by a section on an approach to planning strategic and operational change together with a framework in which to do this. The benefits and limitations of the new approach are summarized.
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Robbin Derry and Sachin Waikar
To recapture lost market share, tobacco giant R. J. Reynolds (RJR) developed Uptown, the first cigarette brand created and targeted specifically at a minority group—in this case…
Abstract
To recapture lost market share, tobacco giant R. J. Reynolds (RJR) developed Uptown, the first cigarette brand created and targeted specifically at a minority group—in this case, African-Americans. RJR planned to launch a six-month test market in Philadelphia in February 1990, which coincided with national Black History Month. The launch generated grassroots opposition from the black community in Philadelphia, which became intent on ensuring there was “No Uptown in our town or any town.”
After analyzing the case, students should be able to:
Identify some of the complex issues surrounding targeting specific populations
Recognize the importance of understanding cultural context
Recognize the limits of profit-based decision-making
Identify some of the complex issues surrounding targeting specific populations
Recognize the importance of understanding cultural context
Recognize the limits of profit-based decision-making
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IN the October number of THE BRITISH FOOD JOURNAL, while disclaiming any intention of supporting or opposing any political party or any section of politicians, we stated our…
Abstract
IN the October number of THE BRITISH FOOD JOURNAL, while disclaiming any intention of supporting or opposing any political party or any section of politicians, we stated our opinion that the fiscal policy which has been outlined before the country by Mr. CHAMBERLAIN is eminently one which requires to be put to the test of experiment and which cannot be profitably argued about upon theoretical bases. In connection with the allegation that by following the policy of leaving our doors open to those who shut their own doors in our faces, we are able to obtain goods at less expense than would be the case under other conditions, we pointed out that it would be well for the public to consider whether that which is so cheap may not also, to a great extent, be particularly nasty. The desirability of considering the nature and quality of so‐called “ cheap ” foods, supplied to us by various countriies without restriction, does not, as yet, appear to have entered the heads of those who have made matter for political controversy out of what is, in reality, a scientific question. The facts are not sufficiently known, or, in consequence of the proverbial carelessness of our generation, are not clearly appreciated. And yet, as it seems to us, some of those facts are of paramount importance to those who desire to study the subject in a calm and scientific manner and outside the region of political turmoil. What do we get from the various countries whose producers and merchants are free to “dump” their goods in this country without the restrictive influence of duty payments? Great Britain has made it known to all the world that “Rubbish may be Shot Here,” and we venture to say that the fullest advantage has been taken, and is taken, of the permission. From America, France, Germany, Italy, Holland, and Belgium, in fact from every producing country—including now even Russia and Siberia, we get inferior or scientifically‐adulterated articles which are sold to the public “ cheap.” Milk and butter scientifically adulterated, or produced under improper conditions in such a way that their composition becomes the same as physically‐adulterated products, condensed “milk” minus cream, cheese practically devoid of fat, or “ filled ” (as it is called) with margarine, all reach us in enormous quantities from most of our near and dear neighbours. Butter and certain wines and beers, loaded with injurious ‘ preservative” chemicals and the sale of which is prohibited in the country of production, are sent to the easily‐entered British “dumping‐ground” for the delectation of its confiding inhabitants. “Tinned” foods prepared from raw materials of inferior character or of more than questionable origin, are copiously unloaded on our shores to feed our complaisant population,—instead of being consigned to the refuse destructors which should be their proper destination; while, every now and then, when something worse than usual has been supplied, representative specimens of this delectable class of preparation are proved to have caused outbreaks of violent illness—those so‐called ptomaine poisonings which, of late years, have increased in number and in virulence to so distinctly alarming an extent. Flour made from diseased or damaged grain, or itself “ sick ” or damaged, and so “ processed ” as to mask its real condition; flour, again, adulterated with other and inferior meals, are “ goods ” supplied to us in ample amount for the benefit of those whose mainstay is some form of bread or flour‐food. The list might be continued literally ad nauseam.
Peter Hines, Matthias Holweg and James Sullivan
Describes a two‐ and, later, a three‐dimensional view of supply chain dynamics within a theoretical framework derived from research carried out in the UK automotive industry…
Abstract
Describes a two‐ and, later, a three‐dimensional view of supply chain dynamics within a theoretical framework derived from research carried out in the UK automotive industry. However, the authors believe that the models developed have a far wider applicability than this narrow sectoral and geographic focus. The research has been developed within two research programmes. The first programme, called “LEAP” (lean processing programme), involves Corus (formerly British Steel Strip Products), two steel service centres and six major UK‐based automotive component manufacturers, all linked within a common supply chain. The second programme, called “3DayCar”, involves 20 European industrial sponsors including six automotive manufacturers. Both programmes are supported by the UK Government Innovative Manufacturing Initiative (IMI). Conclusions based on the waves analogy will be applied to a real‐life setting in order to suggest appropriate business strategies to achieving a lean value stream.