To test the applicability of our model building method and to test the effectiveness of the Project Manger as an integrating tool we built a velocity model from a 3-D post-stack dataset provided by INTEVEP S.A. The data was first depth migrated with a velocity model determined from stacking velocity estimation. The resulting 3-D cube was then displayed in AVS, and surfaces were identified and picked. A velocity model was built by defining the velocity within the various domains delineated by the picked surfaces.