HIS System Design Based on UML

This paper establishes a new object-oriented HIS modeling mechanism and method based on UML. For HIS development, first establish a concise and accurate model, and it is the key to the software development. It can make the developers grasp the global understanding of the whole system and the relationship between its related parts, and can prevent people prematurely get into the details of the various modules. It has a decisive influence on various aspects of the application system such as cost, performance, flexibility, security, maintenance and so on.