Applying DoDAF to NASA Orion Mission Communication and Navigation Architecture

NASA´s pursuit of the Vision for Space Exploration (VSE) has motivated the development of an evolvable communication, navigation and timing architecture for crewed missions, initially to the International Space Station (ISS), followed by destinations to the Moon and eventually Mars. A cost-effective, phased development, leveraging to the maximum extent possible existing and upgradable infrastructure, both within and outside NASA, is being emphasized. The transportation of cargo and crew to the ISS using the Crew Exploration Vehicle (CEV), Orion, is currently under development. During this initial mission phase Internet Protocol (IP) based communications, servicing an interoperable System- of-Systems will be developed. The Department of Defense Architecture Framework (DoDAF) processes and prescribed products therein are being used to implement an end-to-end architecture developed using NASA System Engineering practices. In this paper we will provide an overview of the architecting process with a few examples of the NASA applied DoDAF products.