Requirement: The application must provide responsive interaction and efficient data processing to ensure a smooth user experience even under load.
Scenarios
Scenario: NFR-01-S01 - Application startup time Given the application is installed on a supported device When I launch the application from a cold start Then the splash screen should appear within 0.5 seconds And the main screen should be fully loaded within 3 seconds
Scenario: NFR-01-S02 - Workout data processing Given I am recording a workout with 10 exercises When I complete all exercises and save the workout Then the data should be processed and stored within 2 seconds And the workout summary screen should appear within 1 second after saving
Scenario: NFR-01-S03 - Chart rendering performance Given I have historical data for "Bench Press" spanning 6 months When I navigate to the progress chart for this exercise Then the chart should render completely within 3 seconds And interactive elements should respond to touch within 0.2 seconds
Acceptance Tests
# Test d'acceptationScenario: NFR-01-TA01 - Performance under low memory conditions Given the device has less than 15% available memory When I use the application for a complete workout session Then the application should maintain frame rates above 30 fps And should not crash due to memory constraints
NFR-02: Security and Data Protection
Requirement: The application must securely store user data and protect privacy through appropriate measures.
Scenarios
Scenario: NFR-02-S01 - Secure storage of personal information Given I have entered my personal profile information When the data is saved to device storage Then sensitive information should be encrypted And data should not be accessible to other applications
Scenario: NFR-02-S02 - Optional cloud synchronization security Given I have enabled cloud synchronization When my workout data is transmitted to the cloud Then the data should be sent over HTTPS And access tokens should be securely stored And no plaintext credentials should be stored on the device
Acceptance Tests
# Test d'acceptationScenario: NFR-02-TA01 - Data export security Given I have selected to export my workout history When I choose to share the exported file Then the system should present a warning about data privacy And sensitive personal information should be optionally excluded
NFR-03: Usability and Accessibility
Requirement: The application must be usable by people with different abilities and provide an intuitive interface.
Scenarios
Scenario: NFR-03-S01 - Screen reader compatibility Given I have enabled the device's screen reader When I navigate through the application screens Then all UI elements should be properly announced And I should be able to complete a workout using only the screen reader
Scenario: NFR-03-S02 - Color contrast compliance Given I am using the application with default theme When I view any screen in the application Then text elements should have a minimum contrast ratio of 4.5:1 And interactive elements should have a minimum contrast ratio of 3:1
Scenario: NFR-03-S03 - One-handed operation Given I am holding the device with one hand When navigating through a workout session Then I should be able to record sets and progress to next exercises And critical controls should be reachable within the thumb zone
Acceptance Tests
# Test d'acceptationScenario: NFR-03-TA01 - Text scaling support Given I have set my device font size to 150% of default When I use the application Then all text should remain readable and properly contained within its elements And no important information should be cut off
NFR-04: Battery Consumption
Requirement: The application must efficiently use device battery to allow for complete workout sessions without significant battery drain.
Scenarios
Scenario: NFR-04-S01 - Background battery usage Given the application is installed When the application is not actively used for 24 hours Then the total background battery consumption should not exceed 1% of device battery
Scenario: NFR-04-S02 - Workout session battery efficiency Given the device battery is at 100% When I complete a 60-minute workout session with the app Then the total battery consumption should not exceed 5%
Acceptance Tests
# Test d'acceptationScenario: NFR-04-TA01 - Low battery mode adaptation Given my device is in low battery mode When I use the application for a workout Then the app should disable non-essential features like animations And should adjust sync frequency to conserve battery
NFR-05: Offline Functionality
Requirement: The application must provide core workout functionality without requiring an internet connection.
Scenarios
Scenario: NFR-05-S01 - Workout execution in offline mode Given I have previously synchronized workout programs When I enable airplane mode on my device And I open the application Then I should be able to start and complete a saved workout And all workout data should be stored locally
Scenario: NFR-05-S02 - Data synchronization after offline period Given I have completed 3 workouts while offline When I reconnect to the internet And I open the application Then the app should synchronize my offline workout data And no workout data should be lost
Acceptance Tests
# Test d'acceptationScenario: NFR-05-TA01 - Extended offline operation Given I have been using the app offline for 30 days When I continue using the app for workout tracking Then the app should handle the local data storage efficiently And should not show performance degradation And should successfully sync all data when connection is restored
NFR-06: Cross-Device Compatibility
Requirement: The application must provide consistent functionality across different device types and screen sizes.
Scenarios
Scenario: NFR-06-S01 - Tablet layout optimization Given I am using the app on a tablet device When I view the workout execution screen Then the layout should utilize the additional screen space effectively And should show both current exercise details and upcoming exercises simultaneously
Scenario: NFR-06-S02 - Adaptation to different screen dimensions Given I rotate my device from portrait to landscape orientation When viewing any screen in the application Then all content should remain accessible and properly formatted And no interaction functionality should be lost
Acceptance Tests
# Test d'acceptationScenario: NFR-06-TA01 - Wearable device integration Given I have the companion app installed on a supported smartwatch When I start a workout on my phone Then workout controls should be available on the smartwatch And heart rate data should be captured if available And exercise transitions should be synchronized between devices
NFR-07: Data Management and Storage
Requirement: The application must efficiently manage data storage and provide options for data backup and export.
Scenarios
Scenario: NFR-07-S01 - Storage space optimization Given I have been using the app for 6 months with regular workouts When I check the application's storage usage Then the total storage should not exceed 100MB excluding media files And there should be options to manage storage usage
Scenario: NFR-07-S02 - Data backup creation Given I am logged into the app When I navigate to settings and choose "Backup Data" Then the app should create a complete backup of my workout history and settings And I should be able to select a backup destination
Scenario: NFR-07-S03 - Data restoration Given I have a backup file from a previous device When I choose to restore from backup Then all my workout history, programs and settings should be restored And I should receive a confirmation of successful restoration
Acceptance Tests
# Test d'acceptationScenario: NFR-07-TA01 - Data integrity after app update Given I have workout history spanning 12 months When the application is updated to a new version Then all historical workout data should remain intact and accessible And no user settings should be reset