Lesson 4: Applied Design, Validation, and Best Practices

Topics Covered

• Evaluation, tracing, and quality
• Scalability, resilience, and cost
• Production design review and improvement
• Scenario-based review and architecture trade-offs
• Validation checklist and improvement plan

Practical Activity

Review a complete solution, justify design decisions, and produce a prioritized improvement plan.

• Document assumptions, selected services or concepts, and expected outcomes.
• Record validation evidence, risks, and any required corrective action.

Lesson Outcome

Learners can explain and apply the lesson topics within a realistic Building Advanced Agentic Systems on AWS scenario.