“…Amazon Alex) developed by the IoT platform company (Priego and Jonathan, 2023; Yoonseock et al ., 2023). To capture the notion of strict complementarity, according to previous studies (Lee et al ., 2020; Zha et al. , 2024; Chung et al ., 2023), the overall quality of the smart goods Qi
is modeled as a multiplication of the IoT platform software service m
and hardware quality qi
, i∈{A,B,I}
, that is, Qi=mqi
, i∈{A,B,I}
.…”