In the challenger disaster case study, political factors added to the implementation of a weak design during the original approval process. Unattainable promises were made with respect to performance in order to keep the manned space flight program alive. NASA was under pressure to launch a predefined number of shuttles every year. NASA had a very ambitious launch schedule, pressure was on and delay cost money and jobs at stake. They knew the danger but took calculated risk from their point of view. These pressures are hard to avoid as many higher authorities were involved and the contractor was in pressure from NASA and NASA was in pressure of Govt to launch. So it is difficult to pin point with whom the mistake lies. By looking at the operational capacity or the production level and comparing them with the promises made would help in identifying any such promises which are hard to keep.