Navigation : Lab 1 - Use Cases - Functional Requirements - Non-functional Requirements - Analysis Models Lab 2 - API Subsystem - Notification Subsystem - Web-client Subsystem - Design Rationale Lab 3 - API Specification Non-functional Requirements Flexibility Easy to add, edit and delete crisis type. Easy to add, edit and delete assistance type. Easy to update credentials, such as social media account, summary reporting Email, phone numbers of emergency agencies.