Software Domain Design of Electronic Payment System Based on UML

This paper gives the object behavior model of software, describes the interactive relationship between classes by sequence diagram and the state change of classes by state diagram. In the concrete process of modeling, this paper first uses UML modeling language to construct the structural model and behavioral model of the system and then uses integrated modeling method to establish the UML/OOPN model of software to carry out analysis and verification from another angle. Finally, it gives the general principle and design example of database design and interface design of the system.