A method and associated system for automatically correcting an application based on runtime behavior of the application. An incident indicates a performance of the application in which a problem object produces an outcome that had not been expected by a user. An incident flow for the problem object is automatically analyzed. Actual run of the application renders a forward data flow and at least one backward data flow is simulated from an expected outcome of the problem object. The forward data flow and the at least one backward data flow are compared to create a candidate fault list for the problem object. A technical specification that corrects the incident by use of the candidate fault list and a specification of the application is generated.