Quality

Learning, quality, and reliability

Nancy Leveson and Clark Turner's reconstruction documents six known Therac-25 overdose accidents from 1985 to 1987, with serious injuries and deaths. Reports, interface evidence, and corrective action traveled unevenly across patients, hospitals, the manufacturer, users, and regulators; later quality, learning, reliability, and software practices are comparisons rather than one documented lineage.

What lets a disturbing local event become a system defect before the same design harms someone elsewhere?

Aravind Eye Care System

Aravind linked village screening, transport, hospital surgery, and follow-up, then added permanent vision centres to periodic camps. Participant records describe the intended care journey, while peer-reviewed studies support narrower findings about uptake, diagnostic accuracy, and surgical outcomes without settling follow-up, worker authority, or equal patient experience.

How can a health system make high-quality eye care affordable at enormous volume without making poor patients accept inferior care?

Dell

From 1984 through 2012, Dell's direct model joined customer orders to component purchasing, assembly, delivery, and support, compressing inventory and feeding current demand into a distributed production network. As third parties manufactured most client products, Dell retained brand, customer, coordination, and quality authority while suppliers, workers, communities, and public institutions carried more of the execution and remedy burden. The OptiPlex capacitor record shows the model's central governance risk: relevant evidence reached Dell, yet disclosure and remedies were segmented rather than automatic.

How can a company remove delay and inventory without outsourcing the practical knowledge and accountability it needs to adapt?

Amy C. Edmondson

Amy C. Edmondson developed psychological safety as a team-level construct after an early hospital study exposed the ambiguity of detected error counts. Her research connects perceived interpersonal risk with learning behavior, while her books extend that inquiry to fluid collaboration and intelligent failure. Independent syntheses support important associations but also limit causal, universal, and impact claims.

Chris Argyris

Chris Argyris studied the defenses that let intelligent people avoid learning while appearing rational and in control. Moving from conflicts between mature adults and formal hierarchy to theories-in-use, defensive routines, and double-loop learning, he made the reasoning behind action—not only outcomes—available for inquiry and change.

Eric Ries

Eric Ries translated a failed virtual-world launch, Steve Blank's customer development, agile software practice, and selected ideas from lean production into a method for entrepreneurship under uncertainty. Build–measure–learn, minimum viable products, innovation accounting, and pivots are meant to turn activity into validated learning—not to make speed or smallness virtues by themselves.

Karl E. Weick

Karl E. Weick treated organization as ongoing organizing and developed influential accounts of enactment, sensemaking, and loose coupling, later co-developing a managerial synthesis of high-reliability organizing. His work is largely conceptual and case-interpretive; independent reviews document broad uptake while finding limited empirical testing of early claims and important gaps around power, institutions, embodiment, material causality, worker burden, and intervention effects.

W. Edwards Deming

W. Edwards Deming joined statistical reasoning about variation to a prescriptive philosophy of management. His wartime training, 1950 lectures in Japan, fourteen points, learning cycle, and System of Profound Knowledge are documented; their later use and effects must be separated from lone-guru histories and from claims that every program called total quality management implemented his ideas.

Economic Control of Quality of Manufactured Product

A one-page control-chart memorandum inside Western Electric grew into Walter Shewhart's 1931 account of when factory variation warrants intervention and when intervention will make a stable process worse. The chart is its memorable instrument; the deeper achievement is to connect prediction and action to a particular system of causes.