It is been more than 20 years since organizations started relying on virtual teams which are geograph-ically separated. Previous research has outlined several dimensions of the separation; however the consequences of different dimensions of separation and their impact was still unclear due to the chal-lenges of conducting empirical research. In this study, we employ simulation approach and systemati-cally assess the performance of virtual information systems development (ISD) teams under different spatial and temporal settings. Our framework gives us the way to analyze the impact of spatial and temporal dispersion and their components. Our results provide the theoretical and practical insights into management of virtual ISD teams.