A business use case defines what happens in the business when the use case is requested by a business actor; it describes the complete workflow or business process that produces results required or in need of a business actor. Use case behaviors may be described in a natural language text, which is current common practice, or by using UML behavior diagrams for specific behaviors such as:
state machine, and
Create a business use case diagram for a restaurant. Include several business actors with needs and goals as related to the restaurant and business use cases, expressing expectations of the actors from the business. Your diagram should include both external and internal business views of the restaurant.
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