Abstract
In this paper, we introduce a formal approach to customizing test centers for educational institutions. The paper formulates a mathematical method to reveal the size of a test center according to the number of students in the institution under consideration and the number of registered classes. To address the problem presented in this paper we analyzed some existing test centers using the distributed system approach and compared them to the proposed centralized test centers. We compared the two prototypes intellectually, economically, and operationally. The concluding mathematical formula would easily help any educational institution to optimize their spending efficiency and in advance without compromising the test quality.