Lesson 11.1
Review sequence (trace a critical write and read)
A design review traces a critical write into durable state and the matching read back to the user, testing contracts, ownership, consistency, retries, and failure behavior at every boundary.
An accepted order briefly disappears from order history
Ava accepts Ben's cookie order in the shop computer. They follow the update into saved storage and then check the screen that should show the order.
In this lesson you'll
- 1Follow one run and learn how to read the picture
- 2Predict what changes before revealing the result
- 3Compare the review approaches and gather enough evidence for the next decision