Functional Requirements
- Navigation Assistance
- Route Guidance: Provide turn-by-turn navigation instructions to guide users through indoor spaces, including directions, distances, and points of interest.
- Obstacle Detection: Detect and alert users to obstacles in their path, including static (e.g., furniture) and dynamic (e.g., moving people).
- User Interaction
- Voice Commands: Allow users to input commands or request information using voice commands or a dedicated control interface.
- Haptic Feedback: Provide haptic feedback through wearable devices (e.g., vibrations) to signal directions, turns, or nearby obstacles.
- Location Tracking
- Positioning System: Utilize indoor positioning technologies such as Bluetooth beacons, Wi-Fi triangulation, or Ultra-Wideband (UWB) to determine the user’s location within the indoor environment.
- Pathfinding Algorithms: Implement pathfinding algorithms to calculate the best route from the user’s current location to their desired destination.
- Environmental Awareness
- Indoor Mapping: Use detailed indoor maps to provide context-aware navigation, including information about accessible routes, elevators, restrooms, and exits.
- Dynamic Updates: Update navigation instructions dynamically based on real-time changes in the environment, such as temporary obstacles or changes in the layout.
- Integration with Assistive Technologies
- Smart Devices: Integrate with smartphones or wearable devices that the user may already have, such as smart glasses or smartwatches.
- Third-Party Services: Integrate with other assistive services or applications, such as emergency alert systems or personal assistants.
- User Profiles and Customization
- User Preferences: Allow users to customize navigation preferences, such as preferred routes, types of alerts, and feedback modes.
- Profile Management: Support the creation and management of user profiles to store individual preferences and settings.
- Emergency Assistance
- Emergency Alerts: Enable users to send emergency alerts or requests for help to designated contacts or emergency services.
- Location Sharing: Allow users to share their location with others for safety purposes, if needed.
- Feedback and Reporting
- Error Reporting: Provide mechanisms for users to report issues or inaccuracies in the navigation system.
- User Feedback: Collect user feedback to continuously improve the system and user experience.
- Training and Support
- Onboarding: Provide training materials and support for new users to help them learn how to use the system effectively.
- Help Resources: Offer access to help resources, including tutorials, FAQs, and user support.
Non-Functional Requirements
- Performance
- Response Time: Ensure that the system provides real-time navigation instructions and feedback with minimal latency.
- Accuracy: Maintain high accuracy in location tracking and obstacle detection to ensure reliable navigation assistance.
- Usability
- User Interface: Design an intuitive user interface that is easy for visually impaired users to interact with, including voice and tactile feedback.
- Accessibility: Ensure the system is accessible to users with varying degrees of visual impairment and other disabilities.
- Reliability
- System Stability: Ensure the system operates reliably and consistently, with minimal downtime or system failures.
- Error Handling: Implement robust error handling to manage unexpected issues and provide clear instructions or alternatives.
- Security
- Data Privacy: Protect user data, including location and personal information, through encryption and secure handling practices.
- Access Control: Implement authentication and authorization mechanisms to secure access to the system and user profiles.
- Scalability
- Coverage Expansion: Support scalability to accommodate larger indoor environments or additional locations without degradation in performance.
- User Load: Handle a growing number of users and simultaneous navigation requests efficiently.
- Maintainability
- Code Quality: Maintain a well-documented and modular codebase to facilitate updates, debugging, and maintenance.
- Update Management: Provide a structured process for deploying updates and patches with minimal disruption to users.
- Compatibility
- Platform Support: Ensure compatibility with various devices and operating systems, including smartphones, tablets, and wearable devices.
- Integration Compatibility: Support integration with existing indoor mapping systems and assistive technologies.
- Compliance
- Regulatory Compliance: Adhere to relevant regulations and standards related to accessibility, data protection, and assistive technologies.
- Ethical Standards: Follow ethical guidelines in the design and implementation of assistive technologies to ensure safety and user respect.
- Backup and Recovery
- Data Backup: Implement regular backups of system data, including user profiles and navigation data, to prevent data loss.
- Disaster Recovery: Develop and maintain a disaster recovery plan to restore system functionality and data in case of major failures.