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Use Cases

UC-1 – Receive Posture Alerts​

Actor: Suit User
Description: The user receives real-time alerts when adopting a harmful posture.

Preconditions:

  • Suit connected and calibrated
  • User logged into the app

Main Flow:

  1. User wears MotionSuit.
  2. Suit streams motion data to the app (<100ms latency).
  3. System detects an incorrect posture:
    • Exceeds joint safety limits, or
    • Maintained for >30s, or
    • Matches a risk pattern.
  4. App sends chosen alert (vibration, sound, or notification).
  5. User corrects posture; alert stops.

Postconditions: Alert logged in user history.

UC-2 – View Historical Statistics​

Actor: Suit User
Description: User views posture trends and improvements.

Preconditions: User logged in.

Main Flow:

  1. Open “Statistics” tab.
  2. System loads charts:
    • Weekly/monthly posture trend
    • Time in risky postures per day
    • % improvement
  3. User filters period (7 days / 30 days / 3 months).
  4. Optional: Export report as PDF.

Postconditions: Data visualized and optionally saved.

UC-3 – Monitor Real-Time Metrics​

Actor: Suit User
Description: View live biometric and posture information.

Main Flow:

  1. User accesses Dashboard.
  2. System displays:
    • Heart rate
    • Posture angles
    • Body temperature
    • Suit battery
  3. Color indicators show normal/warning/risk.
  4. Data updates every 2s.

Postconditions: Continuous feedback provided.

UC-4 – Customize Alerts​

Actor: Suit User
Description: Configure how and when alerts are triggered.

Main Flow:

  1. Open Alert Settings.
  2. Choose:
    • Sensitivity (low/med/high)
    • Notification type
    • Quiet hours
    • Posture thresholds
  3. Save preferences.

Postconditions: Personalized alert rules active.

UC-5 – Define Improvement Goals​

Actor: Suit User
Description: User sets posture improvement objectives.

Main Flow:

  1. Open Goals tab → “Create New Goal.”
  2. Choose:
    • Type (max risk-time, min good-posture, etc.)
    • Difficulty level
    • Duration (daily/weekly/custom)
  3. System validates realism (warns if too ambitious).
  4. Goal saved and tracking begins.

Postconditions: New goal recorded in profile.

UC-6 – Track Goal Progress​

Actor: Suit User
Description: Monitor progress toward posture goals in real-time.

Main Flow:

  1. Access Goal Progress page.
  2. See:
    • Progress bars
    • Color indicators (Red/Yellow/Green)
    • Countdown timers
    • Streak counters
  3. App sends motivational notifications:
    • “Almost there”
    • Weekly summary
  4. Success celebrations displayed.

Postconditions: Progress logged; streaks updated.

UC-7 – Earn Rewards and Achievements​

Actor: Suit User
Description: User receives recognition for consistent improvement.

Main Flow:

  1. System monitors goal completion.
  2. When criteria met:
    • Assigns badges (“Posture Pioneer”, “Risk Reducer”, etc.)
    • Adds points and levels
  3. If streak milestones achieved:
    • Bronze/Silver/Gold/Platinum tiers
    • Animated confetti or success message shown

Postconditions: Achievements saved in user profile.

UC-8 – Calibrate the Suit​

Actor: Suit User
Description: Ensure suit sensors measure correctly.

Main Flow:

  1. Start Calibration in app.
  2. Follow visual step-by-step poses.
  3. System validates sensor data quality.
  4. Displays “Calibration successful.”

Alternative: Retry or factory reset if failed.

Postconditions: Calibration profile stored with timestamp.

UC-9 – Monitor Battery Status​

Actor: Suit User
Description: Check and manage suit battery.

Main Flow:

  1. View Battery Status in app.
  2. System shows % and estimated runtime.
  3. Notifications at 20 %, 10 %, 5 %.

Postconditions:** User reminded to recharge suit.

UC-10 – Access Full System Information​

Actor: Administrator
Description: View all project and user data for monitoring.

Main Flow:

  1. Administrator logs in with elevated permissions.
  2. Accesses:
    • GitHub organization & repos
    • Project documentation
    • User activity logs
  3. Can reset passwords or assist users

Postconditions: Administrator actions recorded in audit log.

UC-11 – Manage User Accounts​

Actor: Administrator
Description: Create, modify, or deactivate accounts.

Main Flow:

  1. Open User Management panel.
  2. Add/edit/deactivate user profiles.
  3. Assign roles (user/researcher/Administrator).
  4. Reset passwords if required

Postconditions: Account changes saved in system database.

UC-12 – Analyze Captured Data​

Actor: Researcher
Description: Investigate postural deviations and patterns.

Main Flow:

  1. Researcher logs into analytics dashboard.
  2. Selects dataset (time range / participants).
  3. Applies filters:
    • Posture vs. time of day
    • Fatigue vs. posture quality
    • Temperature vs. physical activity
  4. Exports results (CSV / JSON)

Postconditions: Data prepared for scientific analysis.

UC-13 – Compare Data Across User Groups​

Actor: Researcher
Description: Compare posture data across demographics or professions.

Main Flow:

  1. Select comparison parameters:
    • Profession, age, gender, injury history
  2. System aggregates and contrasts datasets
  3. Generates visual charts highlighting significant differences.
  4. Exports automatic comparison report

Postconditions: Group-based analysis stored or exported.

UC-14 – Login & Authentication​

Actor: Suit User / Researcher / Administrator
Description: The user securely logs into the MotionSuit application to access personalized features, data, and permissions.

Preconditions:

  • User has a valid registered account.
  • Internet connection is available.

Main Flow:

  1. User opens the MotionSuit app or web dashboard.
  2. System displays the login screen.
  3. User enters credentials (email/username and password).
  4. System validates the credentials in the database.
  5. If authentication succeeds:
    • The system loads the appropriate dashboard based on user role (User / Researcher / Administrator).
  6. Session token is generated and stored securely for the current session.

Alternative Flows:

  • A1: Incorrect credentials → system displays error message (“Invalid username or password”).
  • A2: Forgotten password → user selects “Forgot Password”, receives a reset email, and creates a new password.

Postconditions:

  • User is logged in and has secure access to their profile and data.
  • Session audit entry logged in system.

Special Requirements:

  • Passwords must be encrypted

UC-15 – Generate Weekly Report​

Actor: System and Suit User
Description: The system automatically generates a weekly summary report of posture performance and progress for each user.

Preconditions:

  • User has worn and synchronized MotionSuit data during the week.
  • The system has access to stored posture and goal data.

Main Flow:

  1. Every Sunday at midnight (or configurable time), the system compiles the previous week’s posture records.
  2. The system calculates metrics:
    • Average daily posture quality (%)
    • Total time in risk postures
    • Number of alerts triggered
    • Goal completion rate (%)
    • Streak performance (if applicable)
  3. The report is generated in PDF or web format.
  4. System sends a notification to the user (“Your weekly posture summary is ready!”).
  5. User opens the report in the app to review:
    • Graphs of posture improvement
    • Achievements or rewards earned

Alternative Flows:

  • A1: If no data available → system displays message (“No data recorded for this period”).

Postconditions:

  • Weekly report generated and stored in user history.
  • Summary statistics updated in dashboards.

Special Requirements:

  • Reports should be exportable (PDF, CSV).
  • Must support secure download (user-specific access control).
  • Graphs auto-generated using data visualization library.