Planetary science space missions need high quality software ed efficient algorithms in order to extract innovative scientific results from flight data. Reliable and efficient software technologies are increasingly vital to improve and prolong the exploiting of the results of a mission, to allow the application of established algorithms and technologies also to future space missions and for the scientific analysis of archived data. Here after will be given an in-depth analysis study accompanied by implementation examples on ESA and ASI missions and some remarkable results fruit of decades of important experience reached by space agencies and research institutes in the field. Space applications software quality analysis is not different from other application contexts, among the hi-tech and hi-reliability fields. We describe here a Software Quality study in general, then we will focus on the quality of space mission software (s/w) with details on some notable cases.
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