Root cause analysis (RCA) is commonly used in attempts to improve the safety of healthcare delivery, but a variation--success analysis--may also be useful. Traditional RCA is based in Safety-I principles: to improve safety, practitioners focus on serious events with undesired outcomes and attempt to identify what went wrong using investigative techniques. Success analysis, evolving from Safety-II principles, can be used to learn how success was achieved, reinforce correct decisions and actions, and learn how process modifications might contribute to greater improvements.
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