Performance evaluation of computer system and network is an essential task. It helps to determine how the system is performing and weather any upgrading are needed to improve the performance. To measure the performance of system three techniques are used i.e. empirical measurement, analytical and simulation technique. Once a system has been built and is running its performance can be evaluated using the empirical measurement techniques. During design and development phase analytical or simulation techniques are used. Result Tool have been design and developed as a case study for this study. Developed Result tool is used for result sheet and mark sheet preparation with various report required at University level and College level. As Result tool is already developed, we used empirical measurement method which consists of three steps i.e. Selection of performance parameters, choice of measurement tool and design of experiment. Design and Development of result tool and empirical measurement technique explained in this paper. Appropriate network and Result tool performance parameters were selected and set with performance tool. Performance was measured using windows XP__ampersandsignrsquo;s built in performance tool. Experimental setups were implemented to execute Result tool in PAN. We found performance of PAN is considerable. Developed tool is user friendly and does not create any additional load in the system.