<div class="htmlview paragraph">Customers want new and exciting features in their vehicles. As the cost of implementing features goes down, OEMs (Original Equipment Manufacturers) are eager to provide customers with these new “toys.” Because being “Fast to market” is paramount, there is a tendency to shortcut the development process. If the Customer Requirements are not clearly understood, problems can occur late in the design process. This causes production delays and lost revenues. It is easier and more cost effective to identify and correct problems before finalizing the design.</div> <div class="htmlview paragraph">During initial development of a vehicle, engineers are given a list of performance requirements or feature behaviors. Careful analysis of requirements early in the design process will minimize software defects and incorrect behavior. This paper provides an example of Customer requirements and a process to analyze those requirements. The example used is an illuminated entry control system for automotive application.</div>