Execution deficit

In human-computer interaction is execution deficit ( english gulf of execution , divide the execution ' ) the gap between the goals of the user and the physical design that are actually necessary to achieve the objective. The goal of usability is to minimize this gap by simplifying the number of steps required and not disrupting the workflow . In other words, "the difference between the formulation of the target-relevant actions on the part of the user (action specification) and the actions that the system allows". Donald Norman first mentioned gulf of execution and gulf of evaluation in his book User Centered System Design: New Perspectives on Human-computer Interaction.

example

A viewer of a program or stream would like to record it on the computer. The simple idea behind this would be to press a button and press it repeatedly to stop recording. In reality, however, there are several steps involved.

Press the record button and start recording
Selection of a station or channel
Selection of a window on the PC
Press the record button and stop recording
Select file name, format and storage location.

Individual evidence

↑ Corinna Ragutt: Gulf of Evaluation and Its Effect on User Interface Design. Ludwig Maximilians University, 2006, accessed on October 4, 2019 .
↑ Glossary . In: Understanding Mobile Human-Computer Interaction . Elsevier, 2005, ISBN 978-0-7506-6352-6 , pp. xi , doi : 10.1016 / b978-075066352-6 / 50001-3 (English).

[1] Corinna Ragutt: Gulf of Evaluation and Its Effect on User Interface Design. Ludwig Maximilians University, 2006, accessed on October 4, 2019 .

[2] Glossary . In: Understanding Mobile Human-Computer Interaction . Elsevier, 2005, ISBN 978-0-7506-6352-6 , pp. xi , doi : 10.1016 / b978-075066352-6 / 50001-3 (English).