The more complex a product, more involved is the internal review of product development. In internal reviews on products during new product development as well as during product re-engineering, scale model helps by offering same views to all the players in the supply chain and avoids any defects owing to non-coherent visualization of the product complexity. Intricate details of products like turbine, motorized drive etc can be shown by making the cut sectional model using the techniques of micro modeling.cross sectional scale models help organization by enhancing visualization and in turn increasing the productivity of design engineers.