Abstract: User interfaces called by a target application can be quickly and efficiently identified and stored for future resource coverage analysis. User interfaces of the target application that are accessed by users executing the target application on their computing device can be automatically tracked during execution of the target application. Information gathered on user interfaces of a target application and accessed user interfaces of the target application can be employed to generate one or more reports. Generated reports on user interface usage can be used to, e.g., identify the application resources to localize, prioritize the application resources to localize, discern application resource trends for, e.g., maintenance and upgrade activities, detect unused application resources, and select appropriate application resources for test scenarios.