This study assessed the effectiveness of an online examination and evaluation system at Metropolitan International University (MIU) in Uganda. The specific objectives were: to evaluate the reliability and security of the online examination platform; to assess student satisfaction with the online evaluation system; and to determine the influence of the online evaluation system on academic performance. A descriptive survey research design was adopted. A sample of 140 respondents comprising students and academic staff was drawn from a target population of 310 using stratified random sampling. Questionnaires and structured interviews were used to collect data. Descriptive statistics, correlation, and regression analyses were conducted using SPSS. Results showed that platform reliability (β=0.402, p