Abstract
The previous studies that applied the Resource Based View (RBV), to examine the impact of IT resource on IT (Information Technology) competencies, often show different results. This study intends to investigate the impact of IT resources (core communication technology, group collaboration enterprise competences "inter-organization system usage") on IT capabilities (infrastructure, empowerment and functional capabilities) trying to discuss some empirical limitation of testing RBV such as able to disentangle the effects from a variety of sources, and how IT resources complement with other IT resources. Data were collected from 83 IT employees involved in Sudanese banking and insurance sector. A questionnaire was used to collect data. Reliability and factor analysis was conducted to ensure goodness of the data; regression analysis conducted to test the relationships between variables. The findings of this study do disentangle the effects on IT capabilities from a variety of sources. Moreover, it shows how IT resource complements each other in order to generate the outcome of capability.