Abstract
In order to study the structural characteristics of product manufacturing information flowin cloud manufacturing from product angle, the mathematical description model of manufacturing information flow structure was defined. The existence of product manufacturing information flow conditions in the production process was described. Then the flow modes and special cases of product manufacturing information flow were analyzed. From an information-theoretic perspective, the Matter Information Quantity model was built including static entropy and dynamic entropy to describe the complexity of product manufacturing information flow quantitatively. To describe quantitatively the required information quantity in product manufacturing information flow states conversion, Distance of Information-state Transition model was established. Finally, an example is used to demonstrate the validity of the proposed methodology.
