Calculator Web App
Agile vs QUAD - A Side-by-Side Comparison
See how a simple calculator project would be built using traditional Agile/Scrum compared to QUAD methodology. Understand where human gates exist and where AI agents can run autonomously.
The Project
Scope
Build a web-based calculator with basic operations (+, -, *, /)
Features
- Basic arithmetic operations
- Clear and backspace functionality
- Keyboard support
- Responsive design
- Unit tests
Process Flow Comparison
See the dramatic difference in human effort and time investment
Agile/Scrum Approach
Team estimates, grooming
15 min x 10 days
Manual coding, reviews
Manual QA, bug fixes
Demo, retrospective
Manual pipeline
QUAD Approach
BA writes brief, reviews AI output
Auto-generates detailed stories
Scaffolds UI + API code
Developer reviews AI code
Generates & runs all tests
Human QA, auto deploy
Summary Comparison
Human Gates in QUAD
These are non-negotiable human approval points. AI assists, humans decide.
Gate 1: Requirements Approval
Gate 2: Code Review
Gate 3: QA Sign-off
Gate 4: Production Approval
AI Autonomous Zones
These tasks run without human intervention - fully automated by AI agents
Zone 1: Story Expansion
AUTOZone 2: Code Generation
AUTOZone 3: Test Generation & Execution
AUTOZone 4: DEV/QA Deployment
AUTOZone 5: Documentation Generation
AUTOKey Takeaways
Simple Projects = Big Wins
Even a 'simple' calculator has ~50 test cases. AI generates them in seconds vs hours manually.
Human Brains for Human Decisions
Is the UX intuitive? Is the code secure? Is it production-ready? These need human judgment.
AI for Repetitive Work
Scaffolding, test cases, deployments, documentation - let AI handle the repetitive tasks.
Documentation = Test Cases
Flow docs auto-generate test checklists. QA never asks 'what should I test?'
Apply This to Your Project
Start small, add agents gradually