The application of UML model in information system requirements analysis
System requirement analysis,as the starting point of software information system development activities,using UML models for software requirement analysis is currently an important method of object-oriented requirement analysis.Based on the requirement description of different software systems,selecting appropriate UML analysis models to describe the functional points in the requirements from different perspectives can enable system users to Requirements analysts and future design and de-velopment personnel can observe the application scenarios,business processes,and changes in the state of system objects of the target system from multiple perspectives;Understand the functionality of the target system,the relationships between system ob-jects,business rules,and constraints from an abstract perspective.Through the requirement analysis process of an information sys-tem for vehicle management,this paper explores the applicable scenarios and usage methods of three UML models:use case dia-gram,activity diagram(business process diagram),and state transition diagram,as well as the precautions in practical work.Pro-vide a reference operation method for the requirement analysis practice of similar information systems.
UMLrequirement analysisuse case diagramsactivity diagramsstate transition diagrams
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