I would like to make class diagram for – username-us…
I would like to make class diagram for – username -user email – If same user id exists, System must require User to choose another user id -System will remove account if User does not activate the account within 15 days Purchase the answer to view it
Answer
Class diagrams are used in object-oriented modeling to identify and define the classes, attributes, and relationships between objects in a system. In order to create an accurate and comprehensive class diagram for the given requirements, we need to consider the entities and their attributes and behaviors.
Based on the given requirements, we can identify two main entities: “User” and “System.” The “User” entity represents a user of the system, while the “System” entity represents the system itself. Let’s analyze and define the attributes and behaviors of each entity based on the requirements.
User:
– username: This attribute represents the username of the user. It is assumed to be a unique identifier for each user in the system.
– user email: This attribute represents the email address of the user.
– chooseAnotherUserId(): This operation represents the action of the system requiring the user to choose another user id if the same user id already exists.
– activateAccount(): This operation represents the action of activating the user’s account.
– removeAccount(): This operation represents the action of the system removing the user’s account if it is not activated within 15 days.
System:
– checkSameUserIdExists(): This operation represents the action of the system checking if the same user id already exists in the system.
Based on the defined attributes and behaviors, we can now construct the class diagram. The class diagram will include two classes: “User” and “System.”
The “User” class will have the following attributes and operations:
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| User |
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| – username: String |
| – user email: String |
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| + chooseAnotherUserId(): void |
| + activateAccount(): void |
| + removeAccount(): void |
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The “System” class will have the following operation:
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| System |
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| + checkSameUserIdExists(): boolean |
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In the class diagram, the attributes are represented by the name of the attribute followed by its data type. The operations are represented by the name of the operation followed by the return type (if any) and the parameters (if any).
To summarize, the class diagram represents the entities, attributes, and behaviors of the system based on the given requirements. The “User” class has attributes for username and user email, as well as operations for choosing another user id, activating the account, and removing the account. The “System” class has an operation for checking if the same user id exists. This class diagram provides a foundation for understanding and modeling the system accurately.