a new modelling strategy in the 3d world is something called live modelling. this is where the owner of the project can meet with the 3d modeller to discuss the changes and watch as the modeller updates the model live and in person. as long as the level of detail is present in the mode, it will be easy to make all of the necessary changes on the fly. this experience drives the design and convinces the owner that they will be getting exactly what they desire and so they will always want to come back for more. this is the wave of the future so you might as well get ahead of what is to come.