From 86829fbd9fa4d44c1d0be846d1e3177e5d4448b7 Mon Sep 17 00:00:00 2001
From: Emberlynn-Loo <E0960284@u.nus.edu>
Date: Sun, 3 Mar 2024 19:52:45 +0800
Subject: [PATCH] Add Use Cases

---
 docs/DeveloperGuide.md | 362 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 354 insertions(+), 8 deletions(-)

diff --git a/docs/DeveloperGuide.md b/docs/DeveloperGuide.md
index 1b56bb5d31b..89b40183513 100644
--- a/docs/DeveloperGuide.md
+++ b/docs/DeveloperGuide.md
@@ -290,14 +290,39 @@ Priorities: High (must have) - `* * *`, Medium (nice to have) - `* *`, Low (unli
 
 (For all use cases below, the **System** is the `AddressBook` and the **Actor** is the `user`, unless specified otherwise)
 
+**Use case: Add a new person**
+
+**MSS**
+
+1.  User requests to add a new person to JENGA.
+2.  JENGA prompts user for details of new person.
+3.  User enters the necessary information.
+4.  JENGA adds person with the provided details.
+5.  JENGA displays new person added and confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. User enters incomplete or invalid information.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
 **Use case: Delete a person**
 
 **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 requests to list persons.
+2.  JENGA displays a list of persons.
+3.  User selects a specific person in the list to delete by providing the person’s UUID.
+4.  JENGA deletes the person.
+5.  JENGA displays confirmation message.
 
     Use case ends.
 
@@ -305,13 +330,334 @@ Priorities: High (must have) - `* * *`, Medium (nice to have) - `* *`, Low (unli
 
 * 2a. The list is empty.
 
-  Use case ends.
+    * 2a1. JENGA informs the user the list is empty.
+
+      Use case ends.
+
+* 3a. Given UUID is invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+      Use case resumes at step 4.
+
+**Use case: Add an attribute to a person**
+
+**MSS**
+
+1.  User requests to add an attribute to a person.
+2.  JENGA prompts user to enter the person’s UUID and attribute details.
+3.  User enters UUID and attribute information.
+4.  JENGA adds attribute details to specific person’s profile.
+5.  JENGA displays attribute in person’s profile and confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Attribute details are invalid.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+* 3b. Given UUID is invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+**Use case: Edit to add an attribute to a person**
+
+**MSS**
+
+1.  User requests to edit to add an attribute to a person.
+2.  JENGA prompts user to enter the person’s UUID and attribute details to add.
+3.  User enters UUID and attribute information.
+4.  JENGA adds attribute details to specific person’s profile.
+5.  JENGA displays attribute in person’s profile and confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Attribute details are invalid.
+
+    * 3a1. JENGA shows an error message.
 
-* 3a. The given index is invalid.
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+* 3b. Given UUID is invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+**Use case: Edit to delete an attribute to a person**
+
+**MSS**
+
+1.  User requests to edit to delete an attribute to a person.
+2.  JENGA prompts user to enter the person’s UUID and attribute to delete.
+3.  User enters UUID and attribute information.
+4.  JENGA deletes attribute in specific person’s profile.
+5.  JENGA displays confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Attribute details are invalid.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+* 3b. Given UUID is invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+**Use case: Delete a person**
+
+**MSS**
+
+1.  User requests to delete a person.
+2.  JENGA prompts user for details of person.
+3.  User enters person’s UUID.
+4.  JENGA deletes person.
+5.  JENGA displays confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Given UUID is invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+**Use case: Find persons by attribute**
+
+**MSS**
 
-    * 3a1. AddressBook shows an error message.
+1.  User requests to find persons by attribute.
+2.  JENGA prompts user for attribute and attribute value(s).
+3.  User enters attribute name and attribute value(s).
+4.  JENGA displays list of persons with each of the specified attributes.
 
-      Use case resumes at step 2.
+    Use case ends.
+
+**Extensions**
+
+* 3a. Attribute details are invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+* 4a. The list is empty.
+
+    * 4a1. JENGA informs the user the list is empty.
+
+      Use case ends.
+
+**Use case: Find persons by relationship to User**
+
+**MSS**
+
+1.  User requests to find persons by relationship.
+2.  JENGA prompts user for relationship to User.
+3.  User enters relationship type.
+4.  JENGA displays list of persons with specified relationship to User.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Relationship is invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+**Use case: Add a relationship between two persons**
+
+**MSS**
+
+1.  User requests to add a relationship between two persons.
+2.  JENGA prompts user for UUIDs of both persons and relationship type.
+3.  User enters both persons UUID and relationship type.
+4.  JENGA creates a relationship with the provided details.
+5.  JENGA displays new relationship added under both persons’ profiles and confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Relationship type is invalid.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+* 3b. Given UUIDs are invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+**Use case: Edit a relationship between two persons**
+
+**MSS**
+
+1.  User requests to edit a specific relationship between two persons.
+2.  JENGA prompts user for UUIDs of both persons and previous and new relationship type.
+3.  User enters both persons UUID and previous and new relationship type.
+4.  JENGA edits the specified relationship with the provided details.
+5.  JENGA displays edited relationship under both persons’ profiles and confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Relationship types are invalid.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+* 3b. Given UUIDs are invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+**Use case: Delete a relationship between two persons**
+
+**MSS**
+
+1.  User requests to delete a specific relationship between two persons.
+2.  JENGA prompts user for UUIDs of both persons and relationship type.
+3.  User enters both persons UUID and specified relationship type.
+4.  JENGA deletes specified relationship.
+5.  JENGA displays confirmation message.
+
+    Use case ends.
+
+**Extensions**
+
+* 3a. Relationship type is invalid.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+* 3b. Given UUIDs are invalid or does not exist.
+
+    * 3a1. JENGA shows an error message.
+
+    * 3a2. JENGA prompts User to enter the correct and complete information.
+
+      Steps 3a1-3a2 are repeated until the data entered are correct.
+
+      Use case resumes from step 4.
+
+      Use case ends.
+
+**Use case: Exit JENGA**
+
+**MSS**
+
+1.  User requests to exit JENGA.
+2.  JENGA displays goodbye message.
+3.  JENGA saves current data.
+4.  JENGA closes the application window.
+
+    Use case ends.
 
 *{More to be added}*