UML模型画图ECIT航空公司是一家新的航空公司经营出南昌，他们目前有72名员工，其中包括行李处理，飞行员，空乘人员和行政管理人员。他们有很多航班来往很多机场，南昌机场是中心枢纽

Question

UML模型画图
ECIT航空公司是一家新的航空公司经营出南昌，他们目前有72名员工，其中包括行李处理，飞行员，空乘人员和行政管理人员。他们有很多航班来往很多机场，南昌机场是中心枢纽。该航空公司迎合经济，商务舱和头等舱的乘客，并提供网上订票和办理入住手续，以及现场服务。
求画出以下三张图：
- Use Case Model
- Initial Class Diagram
- Sequence Diagram
原题是：
ECIT Airways is a new Airline operating out of Nanchang, they currently have 72
employees, including baggage handlers, Pilots, Cabin Crew and Administrative staff. They have many
flights traveling to and from many airports, but Nanchang Airport is the central hub. The airline
caters for Economy, Business and First class passengers, and offers online booking and check in as
well as onsite services.
需求：
-Passengers must be able to book their own flights and check in
- Passengers can make multiple bookings
- Passengers can upgrade a booking class IF there is room
- Certain staff such as pilots can only be associated with one flight at a time, other staff
members can be responsible for multiple flights such as those that work at check in
- The company has a CEO (Dean Liu) who may need to be modelled in this system
- The airplane must take off from one airport and land in another
- The airline has many airplanes
- Each plane can run multiple flights per day
拜托了，急用。画好了300财富全给你

Answer 1

你去trufun plato上参考他们的案例模型自己画吧，这个english也太~~~~~~，只能考你自己了！