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Outline design is a process by which a designer forms an interactive frame and a visual frame according to the user interaction process and user needs. The results are often presented in the form of a page frame diagram that reflects the layout of interactive controls, grouping of interface elements, and the overall layout of the interface. This is an important stage to build a bridge between user research and design, seamlessly integrate user research and design, and transform user goals and needs into specific interface design solutions.
The main task of the outline design is to convert the system expansion use case diagram obtained from the requirement analysis into software structure and data structure. The specific tasks of designing the software structure are: divide a complex system into modules according to functions, establish the hierarchical structure and calling relationship of the modules, determine the interface between the modules and the man-machine interface, etc. The data structure design includes the description of data characteristics, the determination of the structure characteristics of the data, and the design of the database. Obviously, what the outline design establishes is the logical model of the target system, and has nothing to do with the computer.