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2.0. LITERATURE REVIEW
The fast food industry is growing and new food varieties are on the market. So the
customer’s expectations are getting higher and higher, unlike other food companies. The global
food market means that many restaurants have the taste of international cuisine. Therefore,
more and more consumers are required for various tastes. It is necessary to meet customer
expectations for change. Not only the taste but also the product quality changes, and more
importantly, the change of service attitude.
Since the 1990s, work on product quality has been sustained (Dale & Plunkett, 1990).
From the existing literature, (Brogowicz et al., 1990) the Nordic school plays a very important
role (Gronroos, 1982; 1983; 1984; Lehtinen, 1985; Gummesson & Grornoos, 1987; Ghobadian
et al., 1994). On the other hand, North American schools also play a key role (Parasuraman et
al., 1985; 1988; 1990; Garvin, 1987; Haywood-Farmer, 1988). (Brogowicz et al., 1990) These
two schools represent the current way of thinking in the field of quality services. In 1988,
Gronroos stated that quality is actually the authenticity of resources (Smith, 1993). He
explained that quality was used as an independent variable, not as a function of resources, not
as quality effectiveness.
Undoubtedly, there is a large correlation between these two variables (Gronroos is
finalized. For consumers, the functional dimension is very important.) (Gronroos, 1983)
divides quality services into two variables. : Technical quality and non-technical quality, and
point out that the quality of service experienced by the consumer will lead to his/her potential
future consumption.
Quality Service Awareness will be the result of a customer-approved assessment
process. Quality service is a necessary condition for measuring quality services to meet
customer needs. Quality service conceptualization depends on meeting customer expectations.
(Ghobadian et al., 1994) shows that the customer’s participation in the delivery process and the
service process as well as the service results are all influenced by the quality perception. This
means not only changing in tangible quality but also changing in intangible services.
However, some employees may resist this change because some employees know
that some people who have no money or are not clean cannot eat at Pizza Hut, such as beggars,
homeless people, etc., because they think they have no money to eat on the one hand, on the
other hand, Even if they have money to eat, they will affect other customers. And there is also