1. A computer-readable storage medium storing a plurality of instructions for controlling a processor, the plurality of instructions comprising: instructions that cause the processor to determine an execution path traced by an application for processing an input, the execution path comprising a plurality of elements of the application; instructions that cause the processor to determine delta information for the application, the delta information related to one or more customizations made to the application; instructions that cause the processor to determine, based upon the delta information, a first element, from the plurality of elements, that has been customized; and instructions that cause the processor to display the execution path comprising the plurality of elements such that the first element is identifiable as being customized.