CxP 70000 (REV. B), CONSTELLATION ARCHITECTURE REQUIREMENTS DOCUMENT (CARD) (13 FEB 2008)

CxP 70000 (REV. B), CONSTELLATION ARCHITECTURE REQUIREMENTS DOCUMENT (CARD) (13 FEB 2008)., The Constellation Architecture Requirements Document (CARD) defines requirements controlled by the Constellation Program for the hardware, software, facilities, personnel and services needed to perform the Design Reference Missions (DRMs). The Constellation Architecture is comprised of a human-rated Crew Exploration Vehicle (CEV) and Lunar Surface Access Module (LSAM), the Mars Transfer Vehicle (MTV), the Descent Ascent Vehicle (DAV), a human-rated Crew Launch Vehicle (CLV), a Cargo Launch Vehicle (CaLV) which includes the Earth Departure Stage (EDS), Ground Systems, Missions Systems, and future Destination Surface systems, such as the habitats, power systems, rovers, science equipment, robotic systems and resource utilization systems that enable the crewmembers to live, work and explore the surface of other worlds. The architecture also includes necessary interfaces to external entities including International Space Station (ISS), international partners, and communications and tracking infrastructure.