Created Use Cases (markdown)

Use-Cases.md

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+**Use Case #1**
+    
+**Use Case Title:**  
+User authentication for the test website.  
+**Preconditions:**  
+The user has the authentication mobile application installed on his/her smartphone.  
+The user’s phone supports NFC technology.  
+The user has given the application permissions that it requires, so that the application can use NFC technology and communicate with the web service.  
+The user has an ID-card with NFC interface.  
+**Primary actor:**  
+User  
+**Main success scenario:**  
+1. The user starts a login process on the website and selects the mobile authentication application option.
+2. The website launches the authentication application on the user’s smartphone.
+3. The user places the ID-card against the mobile phone (near the NFC chip of the mobile). (Use Case #2)
+4. The application asks the user to enter a valid PIN.
+5. The application generates a web-eID compatible JWT.
+6. The token is delivered to the website that started the authentication process.
+7. The user is logged into the website.  
+
+**Extensions:**
+1. The authentication application is not found.  
+a. The website informs the user that the login process failed.  
+3. The connection between ID-card and smartphone is not established.  
+a. The application cancels the authentication process.  
+b. The user is directed back to the website.
+4. The user enters an invalid PIN.  
+a. Max retries are not exceeded - The user is asked to enter the PIN again.  
+b. Max retries are exceeded - ID-card authentication feature will be disabled. Application notifies the user.
+
+
+
+
+**Use Case #2**
+
+**Use Case Title:**  
+Detecting a nearby ID-card.  
+**Preconditions:**  
+The mobile authentication app is active.  
+The user has an ID-card with NFC interface.  
+The ID-card is currently not in the range of the mobile NFC chip.  
+**Primary actor:**  
+User  
+**Main success scenario:**  
+1. The authentication app notifies the user that the ID-card is currently not being detected.  
+2. The user puts the ID-card against the NFC chip of the smartphone.  
+3. The app notifies the user that the ID-card has been detected. 
+ 
+**Extensions:**  
+ 2a. The user fails to put the ID-card against the NFC chip.  
+   a. The app keeps waiting for the user (timeout will be decided in the future).
+   b. The user puts the ID-card against the NFC chip.  
+   c. The authentication process continues.  
+ 2b. The user closes the app.  
+   a. The authentication process is cancelled.  
+ 3. The user uses an invalid or expired ID-card  
+   a. The app notifies the user that the ID-card is not valid.  
+   b.  The app keeps waiting for the user.