(b) draw a data model. The business use cases and the data stored by the project should give you an idea about the size and complexity of the project, which will give you an idea if you can deliver the project under the stated budget. 1 mark for business use cases, 2 marks for the data model.

the business cases that i've found-

Business use cases

• Client login credentials check

• Creating a new account for the client

• Estimation of cost for cargo shipment with a number of items, weight, and delivery destination.

• Truck manager scheduling truck for a specific time

• Truck manager scheduling a truck driver for a specific delivery with a specific truck

• Flight manager scheduling flights

• Flight manager scheduling flight crew for specific flights

• Truck manager scheduling truck maintenance

• Truck driver reporting maintenance requirements and breakdown to Truck manager

• Flight manager scheduling plane maintenance to crew

• Flight crew reposting breakdown and maintenance requirement to Flight manager

• HR manager access and change employee vacation time and approval

• HR manager access to all employees for salary

• HR manager access to all employees hours

• HR manager access to employee information

i need a data model based on these infos