Improvement of the cloud system created for payment registration devices using integrated fuzzy dematel and fuzzy quality function deployment methods

In this study, enhancement of the cloud system created for payment devices by the fuzzy quality function deployment (Fuzzy QFD) and fuzzy DEMATEL (The Decision Making Trial and Evaluation Laboratory) methods has been done. In order to be able to see the transactions performed on the payment devices and the data belonging to the transactions, it is necessary to communicate with the device provided that being connected to the integrator firm. In the study, an old infrastructure of a cash register company has been enhanced by using fuzzy QFD method in order to access the transactions made on the device over internet without being connected to any integration company. It is aimed to increase the efficiency of the infrastructure by applying the fuzzy QFD method. Fuzzy DEMATEL method is being used in order to get the values obtained by fuzzy QFD method closer to reality. In the study, the problem of necessity of being connected to the integrator company in order to access the transactions made on the device was eliminated. It is provided to get detailed information from the desired device safely at the desired location and time without being connected to a single user. As a result of the study, solutions for the old infrastructure were developed to improve the ease of use, instant accessibility and clarity of the requested information by fuzzy QFD method. In accordance with the requests and demands of everyone who owns payment device, many new features have been added to the cloud system to meet customer demands.