SERVQUAL
is an analytical tool, which can help managers to identifying the gaps between variables
affecting the quality of the offering services (Seth, Deshmukh, & Vrat, 2005).
This model is the most used by marketing researchers and scientists, although it is an exploratory study and does not offer a clear measurement method for measuring gaps at different levels.
This model has been refined during the years and some believe that only performance needed to be measured as SERVPERF model in order
to find perception of service quality (Cronin & Taylor, 1992). Finding in years of using this model shows
SERVQUAL factors are inconsistent and it is not comprehensive for different applications (Dabholkar, et
al., 1996; Shahin & Samea, 2010).