Diagrams in System Analysis and Design In system analysis and design, diagrams are used to represent the different aspects of a system, its components, and their interactions. The main types of diagrams used in system analysis and design include: Use case diagrams: This type of diagram is used to describe the functionality of a system from the user's perspective. It shows the different use cases (or scenarios) in which a user interacts with the system, as well as the actors (or users) who are involved in those interactions. Activity diagrams: This type of diagram is used to represent the flow of activities within a system. It shows the sequence of activities and decisions involved in a particular process or use case. Sequence diagrams: This type of diagram is used to represent the interaction between objects in a system. It shows the sequence of messages exchanged between objects in a particular scenario or use case. Class diagrams: This type of diagram is used to represent the str
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