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Updated use cases. #55

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20 changes: 7 additions & 13 deletions docs/DeveloperGuide.md
Original file line number Diff line number Diff line change
Expand Up @@ -321,32 +321,26 @@ Priorities: High (must have) - `* * *`, Medium (nice to have) - `* *`, Low (unli

### Use cases

(For all use cases below, the **System** is the `AddressBook` and the **Actor** is the `user`, unless specified otherwise)
(For all use cases below, the **System** is `TutorTrack` and the **Actor** is the `Tutor`, unless specified otherwise)

**Use case: Delete a person**
**Use case: UC01 Add a student**

**MSS**

1. User requests to list persons
2. AddressBook shows a list of persons
3. User requests to delete a specific person in the list
4. AddressBook deletes the person
1. User enters command to add a specific student in the list
2. System adds the student

Use case ends.

**Extensions**

* 2a. The list is empty.
* 1a. The given syntax is incorrect.

Use case ends.
* 1a1. AddressBook shows an error message.

* 3a. The given index is invalid.
Use case resumes at step 1.

* 3a1. AddressBook shows an error message.

Use case resumes at step 2.

*{More to be added}*

### Non-Functional Requirements

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