In a three-tier architecture,the business classes should not be concerned with the functionality of the user interface.

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In a three-tier architecture, the business classes are part of the middle tier and should only handle business logic and data access. The user interface should be handled by the presentation tier, which is responsible for displaying information to the user and gathering input. Therefore, the business classes should not be concerned with the functionality of the user interface.

In a Three-Tier Architecture,the Business Classes Should Not Be Concerned