Table 2.

Perceived Quality definitions.

References	Definition
Boulding et al. (1993)	“The consumer’s perception of overall service quality results from a comparison between expectations and perceptions of the different components of service. With perceptions of services held fixed, the higher the expectations, the lower the perceived quality”
Parasuraman et al. (1988) Su et al. (2016)	“It is a form of attitude, related but not equivalent to satisfaction, and results from a comparison of expectations with perceptions of performance”
Zeithaml (1987)	“Perceived Quality is the consumer’s judgment about an entity’s overall excellence or superiority”