23 September 2011 An Open Letter to the Systems Community In August 1992, a small systems engineering company was born just outside of Washington, DC with the vision of improving tools and practices for the systems engineering profession. In the nineteen years since, we have seen significant changes – consolidation …

People use the word model in many different ways. They might mean a fashion model or a model plane or a financial model. The kinds of models we focus on are those that “represent” some aspects of a physical reality. It might be the images that make up a model …