"Holiday Travel Vehicles sells new recreational vehicles and travel trailers. When new vehicles arrive at Holiday Travel Vehicles, 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 Holiday Travel Vehicles, 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. If the customer requests dealer-installed options, they are listed on the invoice as well. The invoice also summarizes the final negotiated price, plus any applicable taxes and license fees. The transaction concludes with a customer signature on the sales invoice.

     Customers are assigned a customer ID when they make their first purchase from Holiday Travel Vehicles. Name, address, and phone number are recorded for the customer. The trade-in vehicle is described by a serial number, make, model, and year. Dealer-installed options are described by an option code, description, and price." [1]

[1] Chapter 5 Exercise, Systems Analysis and Design with UML, 4th Edition (available via O'Reilly for Higher Education)

Based on the above case, provide the answers to the below questions. Submit your answers to Q1-Q3 in one Word file.

Q1: Develop two "after DX" BPMN models with swimlanes. The first model is for new vehicle purchases from suppliers, and the second model is for customer sales (with a trade-in vehicle, if any). Use WebSphere Business Modeler [*] to draw BPMN models, and take a screenshot on each model. In the "after DX" BPMN models, annotate where and how the DX is aided.

[*] Alternatively, you can use Visio or another software product (including Word).

Q2: How should this firm apply DX? Define DX for their process(es).

Q3: What should be their high-level data model(s) (data entities and their relations without attributes)? How does DX influence such data model(s)