6. What is the State chart Diagram? Explain the following. a. Process b.Data Flows c. Actor d.Data Stores
时间: 2024-05-31 15:07:01 浏览: 129
TYGA6.rar_The Eye_eye diagram
State chart diagram is a graphical representation of the states and state transitions of a system. It describes the behavior of a system over time and helps to model the dynamic aspects of a system.
a. Process: A process is a set of activities that are performed to achieve a specific goal. In a state chart diagram, a process is represented by a rectangular box with rounded corners. It shows the steps involved in achieving the goal of the system.
b. Data Flows: Data flows are the movement of data from one part of the system to another. In a state chart diagram, data flows are shown as arrows with labels that represent the data being transferred. Data flows can be used to represent inputs, outputs, and intermediate data.
c. Actor: An actor is a person, organization, or system that interacts with the system being modeled. In a state chart diagram, an actor is represented by a stick figure. Actors can be used to represent users, other systems, or external entities that interact with the system.
d. Data Stores: A data store is a repository of data that is used by the system. In a state chart diagram, a data store is represented by a rectangle with two parallel lines at the top and bottom. Data stores can be used to represent databases, files, or other storage mechanisms used by the system.
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