Whether you're designing a new instrumentation and control (I&C) system, or migrating an existing control system along an upgrade path, you need to have a well-conceived design package. This describes the ideal design package and delves into the business of design engineering. It provides a roadmap to understanding the design process, the elements of a successful project, the specific issues to address in a well-designed I&C system, and the engineering products that enable practical design and successful maintenance.