A lightweight policy-driven approval engine that converts plain-English business rules into executable policies and automatically evaluates expense claims.
The system produces one of three decisions:
✅ APPROVE · ❌ REJECT ·
Every decision includes a traceable rationale explaining exactly which business rule produced the result.
No AI/LLM dependency. No database. No external libraries. Just Java + configurable business rules.
https://drive.google.com/file/d/1iy3qK7PYlBHag6A_osnvSaabma6WEpGu/view?usp=drivesdk
The demo shows the dashboard, policy configuration, expense evaluation, and approval/rejection/escalation decisions.
The project includes a lightweight browser-based dashboard for interacting with the approval engine.
- 📋 View configurable business rules
- 📊 Evaluate expense claims
- ✅ Automatic approvals
- ❌ Policy-based rejections
⚠️ Human-review escalations- 🔎 View matched-rule rationale
- 🔄 Update policies without modifying Java source code
In real organizations, expense approvals are controlled by changing business policies.
For example:
"Auto-approve expenses under $500 for Sales."
Instead of hard-coding this logic directly into Java, this project treats approval policies as configuration.
Business rules are stored in:
rules.txt