A software robot is designed to carry out an activity (e.g., a mouse click, a text input, etc.) on a target element (e.g., a button, an input field, etc.) of a user interface. The robot's code specification is configured to include an on-screen image of the target element and a text displayed by the target element. The robot is configured to automatically identify the target element at runtime according to an element ID specified in the source code of the user interface, and when such identification fails, to identify the target element according to the text and image stored in the robot's code.