Technologically and financially the concept remains conservative, with both peak yearly and total funding to be less than the ISS up to the first mission. The plan would use standardized systems to launch a crew of 4 every four years, but accomplish the same major goals as DRA 5.0, which included a crew of six. Scaled down from DRA 5.0 and its requirements, it claims to be still acceptable from a science and exploration standpoint. Simplifications and cost cutting are obtained mainly by avoiding high risk or high cost technology development and maximizing development and production commonality: