D-Face (Depression Screening)

A web application for initial depression screening using the standard PHQ-9 questionnaire. This project was built as a hands-on exercise to implement a rule-based scoring system that evaluates responses against predefined criteria. It includes an information page, an assessment flow, and a history view for reviewing past results. After submission, the system calculates the total score, maps it to a severity level, and provides immediate preliminary guidance.

1. 01Needed a consistent, criteria-based evaluation system aligned with PHQ-9 scoring rules as a foundation for a health-oriented web app practice project.
2. 02Users should receive immediate results and preliminary guidance after completing the assessment to understand their score and next steps.
3. 03Required supporting pages—educational content and a result history—to help users learn and track their assessment trends over time.

1. 01Implemented the standard PHQ-9 (9 questions) as a straightforward, user-friendly form with completeness checks before evaluation.
2. 02Built a rule-based scoring and severity mapping mechanism, then generated a result summary and appropriate preliminary recommendations instantly after submission.
3. 03Added an information section to explain the purpose and context of the screening, and a history page to review past results and observe score changes.

1. 01Users can complete the PHQ-9 assessment and receive an immediate score summary with severity classification and preliminary guidance.
2. 02A dedicated history view enables convenient review of previous assessments and trend tracking over time.
3. 03Delivered a clear, criteria-driven prototype suitable for further iteration and feature expansion.

• Next.js
• MySQL
• Prisma

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