In this paper, a holistic methodology has been followed to gauge the quality of service for real-time attendance system. The experiment was done to compare the performance of an attendance server which will be cost-effective but reliable. To reduce the cost, users are connected to the biometric attendance device with a local server where the data is updated instantly. As a result, the chance of data loss is almost none. The available devices in the market are very expensive whereas our complete system may cost around USD50. On the other hand, most of the devices produce multiple data for a single user on a specific day as the data fetched from the internal memory of the respective device. But our proposed system provides a very well-ordered data for easy tracking of attendance. Moreover, our proposed framework requires a marginal power to drive the whole system. The complete system can be implemented using regular hardware and software at a very low cost.