  The use of assistive robots in domestic environments can raise significant
ethical concerns, from the risk of individual ethical harm to wider societal
ethical impacts including culture flattening and compromise of human dignity.
It is therefore essential to ensure that technological development of these
robots is informed by robust and inclusive techniques for mitigating ethical
concerns. This paper presents EHAZOP, a method for conducting an ethical hazard
analysis on an assistive robot. EHAZOP draws upon collaborative, creative and
structured processes originating within safety engineering, using these to
identify ethical concerns associated with the operation of a given assistive
robot. We present the results of a proof of concept study of EHAZOP,
demonstrating the potential for this process to identify diverse ethical
hazards in these systems.
