Modeling is a balancing act between the present and the future. It is important to understand that a data model is never perfect for all the problems that we might try to solve. We make compromises on certain parameters, while optimizing for others. Given more information and insight into the future of the business, the current model might feel inadequate. This is not an exception, and should be expected. Redesigning and data remodeling is a process that repeats itself multiple times over a product's life cycle.