Errors are defined as: An injury caused by medical management rather than the underlying patient condition One occasion where a planned sequence of mental or physical activities fail to achieve its intended outcome Errors that occur in upper levels of the organization Could be considered cutting corners all the occasions in which a planned sequence of mental or physical activities fail to achieve its intended outcome An injury caused by medical management rather than the underlying patient condition One occasion where a planned sequence of mental or physical activities fail to achieve its intended outcome Errors that occur in upper levels of the organization Could be considered cutting corners all the occasions in which a planned sequence of mental or physical activities fail to achieve its intended outcome.