This document enforces a systematic approach to planning and executing verification programs for manned and unmanned space systems based on a distributed approach that corrects fundamental deficiencies associated with the traditional centralized verification approach. Thus, this document corrects generic problems in conducting verification that existed even during post-Total System Program Responsibility or "Faster, Better, Cheaper" policy that prospered late 1990 through early 2000 for developing complex space systems. This standard is intended to help those in the space community develop reliable systems that meet requirements while ensuring proper accommodations of heritage and/or commercial systems in their developing systems. It also helps to facilitate the closely coordinated validation activities with those of verification, as the distributed systems engineering processes utilized in the latter can be easily adopted by the former activities.