Use Case 2.3 Unlock the app
Overview
Aspect |
Description |
|---|---|
Summary |
The user unlocks the app either by using biometrics or entering a PIN, with fallback options including PIN recovery or wallet deletion if access fails. |
Goal |
Unlocking the app. |
Preconditions |
None |
Postconditions |
None |
Triggered by |
|
Additional Documentation |
None |
Possible errors |
None |
Logical Test Cases |
Flow
# |
Description |
Next |
|---|---|---|
1 |
PRIMARY SCENARIO |
|
1.1 |
System determines whether biometrics are enabled
|
|
1.1a |
Case: Biometrics are enabled |
2 |
1.1b |
Case: Biometrics are not enabled |
1.2 |
1.2 |
System scans biometrics |
|
1.2a |
Case: Valid biometric |
|
1.2b |
Case: Invalid biometric (first time iOS) |
2 |
1.2c |
Case: Invalid biometric (second time iOS) |
3 |
1.2d |
Case: Invalid biometric (first till fourth time Android) |
4 |
1.3 |
System shows screen ‘Open app with PIN’
|
|
1.3a |
User enters PIN |
1.4 |
1.3b |
User selects Forgot PIN |
6 |
1.3c |
User selects Info |
Go to: UC9.2 Get app information |
1.4 |
System executes partial flow PF2.8 Validate PIN |
|
1.4a |
Result: Confirm |
1.5 |
1.4b |
Result: Retry |
1.3 |
1.4c |
Result: Back |
Back |
1.5 |
System determines whether user has obtained PID
|
|
1.5a |
Case: User has obtained PID |
1.6 |
1.5b |
Case: User has not obtained PID |
Go to: UC3.1 Obtain PID |
1.6 |
System executes partial flow PF2.7 Resolve a universal link |
|
1.6a |
Result: No (valid) universal link |
1.7 |
1.7 |
System determines whether app was shutdown before unlocking |
|
1.7a |
Case: App was active (iOS: resume, Android: hot start) |
Resume1 |
1.7b |
Case: App was shutdown (iOS: launch, Android: cold or warm start) |
|
2 |
WHEN BIOMETRIC IS INVALID, FIRST TIME IOS |
|
2.1 |
System displays prompt ‘Biometric not recognized’
|
|
2.1a |
User selects Close |
1.3 |
2.1b |
User selects Try again |
2.1 |
3 |
WHEN BIOMETRIC IS INVALID, SECOND TIME IOS |
|
3.1 |
System displays prompt ‘Biometric not recognized enter your PIN’
|
|
3.1a |
User selects Enter Password |
1.3 |
3.1b |
User selects Cancel |
1.3 |
4 |
WHEN BIOMETRIC IS INVALID, FIRST TIME ANDROID |
|
4.1 |
System displays message ‘Biometric not recognized’
|
|
4.1a |
User selects Close |
1.3 |
4.1b |
User selects Try again |
2.1 |
5 |
WHEN BIOMETRIC IS INVALID, FIFTH TIME ANDROID |
|
5.1 |
System displays prompt ‘Too many failed attempts. Open with PIN’
|
|
5.1a |
User selects Close |
5.2 |
5.2 |
System displays prompt ‘Biometric not recognized, enter your PIN’
|
|
5.2a |
User selects OK |
1.3 |
6 |
RECOVER FROM FORGOTTEN PIN |
|
6.1 |
System displays forgot PIN screen
|
|
6.1a |
User selects Delete Wallet |
Go to: UC9.4 Wipe all app data |
6.1b |
User selects Back |
Back |