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Dan Rasky SpaceXs Nontraditional Requirements Development

the whole design process at SpaceX at least back in the back in 2008 and 2009 when they were really in startup mode wassignificantly different from traditional aerospace in fact was well known thatpeople who would come from either NASA or traditional aerospace to SpaceXwould suffer a certain amount of culture shock getting used to the this startupmethod of operating for example requirements I never once a requirementsdocument and when we are working at SpaceX developing the thermal protectionsystem essentially Elon wanted a heat shield for his Dragon capsule and it had to be able to do earth returns but he also

wanted to it capable of doing lunar returns that was pretty much it that was the requirement document and so then we worked in what you might call a collaborative design environment to come up with theheat shield that was compatible with the structure of the propulsion system the avionics and the other subsystems to give a successful Dragon capsule so if there'sno formal formal requirements document that youtypically would see under a traditional aerospace approach we spend a lot oftime putting together fairly detailed sets of requirements particularly for all thedifferent subsystems I didn't see any of that

didn't witness any of it now from thatnow from that period of time when they are really doing lot development totoday they have brought in more of a production approach they have gone tomore requirements documents and configuration control but I'm back in2008 there were very much and started mode.

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