Searching to understand services quality, Parasuraman, Zeithaml and Berry developed the CustomersGap Model, which identifies the difference between the waited service and the service perceived for thecustomers. This study intends to apply and test the Customers Gap Model at SEBRAE Pernambuco, specificallyin the CDI (Documentation and Information Center). The test of the model was carried through by means ofcorrelations between the variables that generate the Gap of the Customers. Interviews and application ofquestionnaire were performed. Itâs able to observe that the variables that made the customersâ gap assumebehavior according to the model principles and that the perceived performance get stronger relations withcustomersâ gap.