The main purpose of a systems engineering tool is to augment the work of the systems engineer by providing a framework in which to construct a model of the system. This helps in two major ways. It allows the tool to do the record keeping, assuring the consistency and completeness of the model. In addition, it frees the engineer to do the work of actual design and it makes it possible for the tool to auto-generate and maintain the variety of views into the model data that are the way the engineer can communicate into and out of the model. We like to say that with GENESYS, the tool does the bookkeeping, and you do the engineering.