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我要畫UML用例圖如下場景:畫UML用例圖
In the university to set up a new coffee management system. These are the (informal) requirements:
1. A coffee machine dispenses coffee at the press of a button.
2. There are different coffee flavors (espresso, cappuccino, or latte macchiato) with different
prices.
3. Every user has an account on the coffee management system.
4. Every user logs on to the system using some identification (a password or picture).
5. Users choose the coffees they had (or will have) and mark them as 「dispensed」.
6. The price for the coffee is automatically deducted from their account.
7. A special user (the 「administrator」) can recharge user’s accounts.
如何創建對於上述方案,包括方案和異常的使用情況。
我試圖繪製用例圖,請有人可以檢查是否正確。提前致謝。