The stakeholders of PLM systems expect accurate product documentation.  Such is not always reality.  The dire results of inaccurate product documentation can affect all levels of stakeholders’ activity: strategic, tactical and operational, and maybe all levels at once.  Excessive scrap and rework may trigger excessive costs and delayed shipments. Perhaps, even loss of customers.  Fortunately, in the realm of 3D CAD models and 2D drawings, Model-Based Definition (MBD) is an evolving solution for generating information that is clear, unambiguous and repeatable for all stakeholders in a single source over the lifecycle of a product.