Q: Front office of any hotel is responsible for all room reservations, room allocations and final settlement of bills. Any company or person can reserve room for their future stay. They have to indicate from what date to what date they need the room. They also have to indicate how many rooms are required. Sometimes the reservations could be cancelled or dates or number of rooms changed. For reservation, cancelled or modification of rooms, customer receives an acknowledgement from the hotel. Draw sequence diagram for reserve room scenario, also draw the class diagram.

There are several types and sizes of constraints.

Holiday Travel Vehicle (HTV) sells new recreational vehicles and travel trailers. When new vehicles arrive at HTV, a new vehicle record is created. Included in the new vehicle record are a vehicle serial number, name, model, year, manufacturer, and base cost. When a customer arrives at HTV, he or she works with a salesperson to negotiate a vehicle purchase. When a purchase has been agreed upon, a sales invoice is completed by the salesperson. The invoice summarizes the purchase, including full customer information, information on the trade-in vehicle (if any), the trade-in allowance, and information on the purchased vehicle. The invoice also summarizes the final negotiated price, plus any applicable taxes and license fees. If the customer requests dealer-installed options (simply options), they are listed on the invoice as well. A customer may decide to have no options added to the vehicle or may choose to add many options. Dealer-installed options are described by an option code,…