Table 4

XAI objectives

Objectives/goalDefinition (adopted from the given sources)Sources
Understandability
Other included codes: Intelligibility, comprehensibility, interpretability
The degree to which end users are able to form an accurate mental model regarding how the AI system worksChazette and Schneider (2020), Cheng et al. (2019), Cirqueira et al. (2020), Cramer et al. (2008), Ehsan et al. (2019), Eiband et al. (2018), Eslami et al. (2018), Lim et al. (2009), Lim and Dey (2009), Oh et al. (2018), Putnam and Conati (2019), van der Waa et al. (2020), Weitz et al. (2019a), Wang et al. (2019), Xie et al. (2019) 
Trustworthiness
Other included codes: Trust
Refers to end users' perception about the truthfulness and honesty of the system, as well as beliefs that the system works as intendedBrennen (2020), Bussone et al. (2015), Cheng et al. (2019), Ehsan et al. (2019), Schrills and Franke (2020), Wang et al. (2019), Weitz et al. (2019a), Weitz et al. (2019b), Xie et al. (2019), Yin et al. (2019) 
TransparencyThe degree of information that is disclosed about the AI system. For example, high transparency systems disclose (almost) fully the system functioning from data to algorithms and parametersBrennen (2020), Cai et al. (2019), Chazette and Schneider (2020), Cramer et al. (2008), Eiband et al. (2018), Ngo et al. (2020), Schrills and Franke (2020) 
ControllabilityEnd users' subjective sense of control over the AI systemNgo et al. (2020), Oh et al. (2018), Wang et al. (2019) 
Fairness
Other included codes: Justice
Refers to the subjective perception of whether the decisions or recommendations made by the AI system feel right and justBinns et al. (2018), Dodge et al. (2019) 

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