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CCAO-F · Study Guide

← Build Exercises

Domain 3

Product and Model Selection

4 build exercises to practise the concepts in this domain.

3.1Beginner30 minutes

3.1 — Pick the Right Feature for Six Work Scenarios

What you will learn

  • What chat, Projects, research mode, and Artifacts each do best.
  • How a one-off question differs from recurring work.
  • How a multi-source question differs from a quick lookup.
  • How to justify a feature choice in one sentence.
Open lesson 3.1
3.2Intermediate35 minutes

3.2 — Compare Haiku, Sonnet, and Opus on the Same Tasks

What you will learn

  • The character of each tier: Haiku fast and light, Sonnet balanced, Opus strongest on hard reasoning.
  • How to run a fair comparison with identical prompts.
  • How to judge a result on the quality you actually need.
  • Why the difference shows up on hard tasks, not easy ones.
Open lesson 3.2
3.3Intermediate30 minutes

3.3 — Build a Cost, Speed, and Quality Decision Table

What you will learn

  • How to weigh cost, speed, and quality for a given task.
  • Why the strongest model everywhere is usually the wrong default.
  • How volume and frequency change the choice.
  • How to decide when a quality gain is worth the extra cost or wait.
Open lesson 3.3
3.4Advanced40 minutes

3.4 — Manage a Long Conversation: Restart, Summarize, Persist

What you will learn

  • What the context window is and why long chats degrade.
  • When to restart a chat and when to carry a summary forward.
  • How to persist standing information in a Project or memory instead of the chat.
  • How to spot signs that earlier context is being lost.
Open lesson 3.4