Abstract: A method for automatic data processing in engine systems maintenance or manufacturing includes the following steps: scanning engine component information or vehicle component information from an information carrier coupled to an engine component or vehicle component or associated with the engine component or vehicle component with an image scanner device of a first mobile device, wherein the information carrier includes a pattern which is scanned as a scan-pattern, the scan-pattern is then compared by a pattern-matching method with prestored patterns in a database, the pattern-matching method being executed on the computer system and processing the engine component information or the vehicle component information in a computer system connected at least intermittently with the first mobile device and/or in a computer system integrated with the first mobile device, the first mobile device communicating with a central computer system through a wireless network.