1.

Record Nr.

UNINA9910777977203321

Autore

Hollnagel Erik <1941->

Titolo

The ETTO Principle: Efficiency-Thoroughness Trade-Off : Why Things That Go Right Sometimes Go Wrong

Pubbl/distr/stampa

Boca Raton, FL : , : CRC Press, , 2017

ISBN

1-315-61624-6

1-317-03361-2

1-317-03360-4

1-282-24334-9

9786612243349

0-7546-9349-X

Edizione

[First edition.]

Descrizione fisica

1 online resource (163 p.)

Disciplina

658.3

658.3/14

658.314

Soggetti

Performance technology

Performance - Psychological aspects

Industrial accidents

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Includes index.

Nota di contenuto

Cover; Contents; List of Figures; List of Tables; Prologue; 1: The Need to Understand Why Things Go Wrong; 2: From Rationality to ETTOing; 3: Explaining Human Irrationality; 4: Efficiency-Thoroughness Trade-Off in Practice; 5: The Usefulness of Performance Variability; 6: ETTOs of the Past; 7: ETTOs of the Future; Epilogue; Subject Index

Sommario/riassunto

"Accident investigation and risk assessment have for decades focused on the human factor, particularly 'human error'. Countless books and papers have been written about how to identify, classify, eliminate, prevent and compensate for it. This bias towards the study of performance failures, leads to a neglect of normal or 'error-free' performance and the assumption that as failures and successes have different origins there is little to be gained from studying them together. Erik Hollnagel believes this assumption is false and that



safety cannot be attained only by eliminating risks and failures. The ETTO Principle looks at the common trait of people at work to adjust what they do to match the conditions - to what has happened, to what happens, and to what may happen. It proposes that this efficiency-thoroughness trade-off (ETTO) - usually sacrificing thoroughness for efficiency - is normal. While in some cases the adjustments may lead to adverse outcomes, these are due to the very same processes that produce successes, rather than to errors and malfunctions. The ETTO Principle removes the need for specialised theories and models of failure and 'human error' and offers a viable basis for effective and just approaches to both reactive and proactive safety management."--Provided by publisher.