ABSTRACT
Therehavebeenanumberofpapersandarticleswrittenaboutoperational difficultieswithmoderndisplayandothercockpitsystems.*Asweseeit, theproblemhasbeenaseriesofdiscontinuitiesbetweentheusersandthe designers,betweenthedesignersandthetesters,andbetweentheusersand thetesters.
