Organization Performance Analysis Framework (OPAF) is a Metamodel which analyzes performance of organizational structure using Enterprise Architecture Analysis Tool (EAAT). This quantitative analysis is used to find out which structure is good at learning, motivation, efficiency, productivity, etc. and how to change it. Current framework does not include IT and how it affects the organizational structure. This thesis work will try to find out how IT affects organizational structure, directly and indirectly. The effect is translated in Object Constraint Language (OCL) and inserted in the model. The framework IT-OPAF is used to analyze three real life organizations and see the changes in performance when IT is introduced. This will validate the findings and also recognize pattern of the effect of IT on organizational structure.