GB/T 16656.504-2010

GB/T 16656.504-2010 defines the application interpreted construct for draughting annotation, specifying how to represent and exchange textual and symbolic annotations (such as dimensions, notes, and tolerances) in product data models. It is applied in industrial automation systems and integration contexts, particularly within computer-aided design (CAD) and product data management (PDM) systems, to ensure consistent interpretation of drawing annotations across different software platforms. This standard is used in manufacturing industries, including mechanical engineering and aerospace, to facilitate interoperable data exchange for technical drawings and product lifecycle management.