1.4. Reflection Checkpoint: First Principles Mastery

Key Takeaways

Before proceeding, ensure you can:

• Apply the Three Questions Framework (Shape, Intent, Scale) to any data scenario
• Explain the Control-Convenience spectrum and when to choose IaaS vs. PaaS vs. SaaS
• Map Azure services to lifecycle stages (Ingest, Store, Process, Serve)
• Use these frameworks as reasoning tools to eliminate wrong answers on unfamiliar questions

Self-Assessment Questions

1. A company stores customer reviews as JSON with varying fields. What shape? (Answer: Semi-structured)
2. An application processes 1,000 orders per minute with ACID requirements. What intent? (Answer: Transactional/OLTP)
3. A team wants "zero management overhead" for their database. Which end of the spectrum? (Answer: PaaS/SaaS)
4. A question asks about "orchestrating data movement." Which lifecycle stage? (Answer: Ingest)

Connecting Forward

In Phase 2, you'll apply these frameworks to specific data concepts. When you learn about structured vs. semi-structured data, you're learning the "Shape" question in depth. When you learn about OLTP vs. OLAP, you're learning the "Intent" question in depth. The frameworks from this phase will help you organize and retain everything that follows.