Lone Star provides systems engineering and systems support for clients using and developing complex systems. The drive for open architectures in many markets requires a digital backbone that supports open systems. The CAN Bus for Weapon Internal Communications white paper is an example of Lone Star’s systems architecture work. Lone Star is frequently asked to provide independent assessments, support, or design reviews. One approach is to look at the systems and components used in other markets. That approach was used in this study.