Usability measurement for speech systems: SASSI revisited


In 2000 Hone and Graham [4] published 'Towards a tool for the subjective assessment of speech system interfaces (SASSI)'. This position paper argues that the time is right to turn the theoretical foundations established in this earlier paper into a fully validated and score-able real world tool which can be applied to the usability measurement of current speech based systems. We call for a collaborative effort to refine the current question set and then collect and share sufficient data using the revised tool to allow establishment of its psychometric properties as a valid and reliable measure of speech system usability.

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