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System quality attributes like explainability, transparency, traceability, explicability, interpretability, understand-ability, and the like are given an increasing weight, both in research and in the industry. All of these attributes can be sub-sumed under the term of “perspicuity”. We argue in this vision paper that perspicuity is to be regarded as a meaningful and distinct class of quality attributes from which new requirements along with new challenges arise, and that perspicuity as a requirement is needed for legal, societal, and moral reasons, as well as for reasons of consistency within requirements engineering.
Sterz et al. (Wed,) studied this question.