Assessing the adequacy of ground tests

Prior to a missile flight test, ground tests are performed to give confidence that the ensuing mission will be successful. It can be difficult, however, to determine if a given set of ground tests is comprehensive enough to cover all mission requirements. It is also important to know if a successful ground test indeed indicates a high probability of a successful flight test. This article describes an objective formal systems engineering process developed by the Johns Hopkins Applied Physics Laboratory (APL) to assess the comprehensiveness and adequacy of a system-wide ground test program. To illustrate the process, ground tests for the Navy Theater Wide Aegis Lightweight Exo-atmospheric Projectile Intercept Project are assessed. (Author)