Implement UYDD to CDAD Tutorial: Constraint-Driven AI Development

[koriym]

Summary

Build a practical tutorial that transforms the insights from our "Ugoita Yatta!" to Constraint-Driven Development articles into an actionable learning experience.

Background

The recent AI analysis documents provide deep insights into:

• UYDD (Ugoita Yatta Driven Development) problems
• Hierarchical constraint testing (Schema → Interface → HTTP → Hypermedia → Domain)
• IWY vs CDAD comparison
• AI-generatable tests from constraint definitions

Proposed Tutorial Structure

Phase 1: UYDD Recognition

• Identify "It works, yay!" moments in existing code
• Analyze current testing approaches (fact verification vs constraint validation)
• Demonstrate the limitations of design-less testing

Phase 2: Constraint Definition

• ALPS semantic constraint modeling
• JSON Schema formal constraints
• Interface and type constraints
• HTTP and REST constraints

Phase 3: Hierarchical Testing Implementation

• Level 1: Schema constraint verification
• Level 2: Interface constraint testing
• Level 3: HTTP constraint validation
• Level 4: Hypermedia constraint verification (critical!)
• Level 5: Domain constraint testing

Phase 4: AI-Generated Testing

• Constraint-to-test automatic generation
• Comparison with manual IWY testing approaches
• Demonstration of 95%+ AI generation accuracy with clear constraints

Phase 5: Real-world Migration

• Practical steps from UYDD to CDAD
• Team adoption strategies
• Measurement of quality improvements

Expected Outcomes

• Practical understanding of constraint-driven development
• Hands-on experience with hierarchical testing
• AI-assisted development workflow mastery
• Mathematical quality assurance implementation

Technical Requirements

• BEAR.Sunday framework
• PHP 8.1+
• JSON Schema validation
• Constraint definition examples
• Test automation examples

This tutorial will be the practical companion to the theoretical insights, allowing developers to experience the transformation from "Ugoita Yatta!" to systematic constraint-driven quality assurance.