A joint research project between MIT and JAXA/JAMSS is investigating the application of a new hazard analysis to the system and software in the HTV. Traditional hazard analysis focuses on component failures but software does not fail in this way. Software most often contributes to accidents by commanding the spacecraft into an unsafe state (e.g., turning off the descent engines prematurely) or by not issuing required commands. That makes the standard hazard analysis techniques of limited usefulness on software-intensive systems, which describes most spacecraft built today.
Modeling and Hazard Analysis Using Stpa
2010
Ishimatsu et al. "Modeling and Hazard Analysis Using Stpa", Proceedings of the 4th IAASS Conference, Making Safety Matter, 19–21 May 2010, Huntsville, Alabama, USA SP-680 (September 2010).
Article (Journal)
Electronic Resource
English
Modeling and Hazard Analysis Using STPA
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