Trust Requirements Model for Developing Acceptable Autonomous Car

Abstract

There has been an increase interest among automakers to develop autonomous cars. However, the level of acceptance of the autonomous cars among users is limited. Considering that trust is one of the main determinants for users to accept the autonomous cars. Considering that user's needs and expectation are highly important when developing the autonomous car, a trust requirements model that consists of attributes and related properties based on the perspectives of the users has been developed. The model was also developed based on the proposition that automakers need to consider trust requirements at the early stage of developing the autonomous car. Drawn from a systematic analysis of the literature review, seven attributes, namely safety, security, privacy, performance, user's experience, reliability and economic value together with their related properties were identified. It was also found that there is a one-to-many relationship between the attribute and its properties. This model, named as trust requirements autonomous car (TReAC) model can be used as guideline for automakers to develop acceptable autonomous cars. It is anticipated that this model can be adaptable to other domain. Future work should be dedicated to validating and testing this model.