'Dog that didn't bark' test (Definition)

Assessing not only the identified benefits, but also asking whether there are any additional benefits that haven’t been included. From the Sherlock Holmes story ‘Silver Blaze’ where the crucial evidence was that the dog didn’t bark. This is referred to by Kahneman (2011a) as ‘WYSIATI’ (‘What You See Is All There Is’). The risk is that we only consider the benefits included in the business case rather than also asking what other benefits may be possible*

* Based on Managing Benefits by Steve Jenner © The APM Group Limited 2014. Reproduced with the permission of The APM Group Ltd. All rights reserved.


Last Reviewed: 16 June 2016

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