1 To#nbsp;that end we#nbsp;have co-authored, jointly with EASA, a#nbsp;two-part report on#nbsp;guidelines for learning assurance#nbsp;— Concepts of#nbsp;Design Assurance for Neural Networks (CoDANN I, CoDANN II). Find more on#nbsp;that in#nbsp;our blog posts here and here. These papers established a#nbsp;principle, which was later used by#nbsp;EASA in#nbsp;their published guidance on#nbsp;the compliance means for#nbsp;AI applications, describing how machine learning-based systems can be#nbsp;proven as#nbsp;safe, predictable, and fit for purpose.
2 A supplemental type certificate (STC) applies to modifications made to an existing aircraft (of a specific model). So, the flight software, databases, and all the hardware we build our systems on are subject to STC.