Human Error Assessment and Reduction Technique Plus (HEART+) Printed Manual

HEART+ is the reviewed, revised and extended version of the Human Error Assessment and
Reduction Technique.  For the first time, it has been documented in a manual for general
sale and provides the user with a step-by-step insight to the method and its application.
The manual and underpinning work has been completed by J.C. Williams (the originator of
the method) and J. L Bell (Human Factors specialist and long-term collaborator).
The manual comes in two parts. Part 1 contains instructions on how to apply the method in
a 70-page book. Part 2 can be accessed online and contains the underpinning research that
supports the method.