Data Flow Diagram Expanded (DFD Level 1)

• • To visualize the system's processes and data interactions, I developed an expanded Level 1 Data Flow Diagram. This DFD outlines the main processes:

• User Management

• Routine Tracking & Recommendations

• Mental Exercises Module

• Physical Exercises Module

• Daily Life Questions

• Memory Scrapbook

• Event Scraping

• Gamification & Leaderboard

• Data Sharing with Next of Kin

This diagram helped the team understand the data flow between external entities, processes, and data stores, enabling us to identify potential bottlenecks and design improvements.

Our final system architecture looks like: 

System Architecture:

• Microservices Breakdown:

  • User Management Service: Handles registration, authentication, and profile management.

  • Routine Tracking Service: Manages user routines and generates recommendations.

  • Exercise Services: Separate services for mental and physical exercises.

  • Memory Service: Allows users to store and retrieve memories.

  • Event Scraping Service: Collects and updates local community events.

  • Gamification Service: Manages leaderboards and achievements.

  • Data Sharing Service: Facilitates secure sharing of user data with next of kin.

• Database Design:

  • Primary DB

    • PostgreSQL

      • Supports our needs, simple enough to use.

  • Media Storage

    • AWS Cloud Storage (?)

      • Store all user images and videos.

Software Specifications:

• Database (PostgreSQL) (Redis)

• Python (Flask)

• Auth (OAuth?)

Hardware Requirements:

• Wearable device

  • capable to tracking activity data

• Expected Challenges

  • Data Integration from various wearable brands.

  • Data synchonization without extensive battery drain.