Schema evolution

Understand Schema evolution

For Schema evolution, begin with the problem it solves. Identify the inputs, constraints, and observable outcome before choosing an implementation.

Practise deliberately

Create one small example for Schema evolution and verify its result before expanding it.

A useful comparison

Schema evolution is like a route plan: it keeps each step connected to a destination.

Check your reasoning.

Quick check: What is the best first step for Schema evolution?

• Define the goal and constraints.
• Copy an unverified example.
• Skip measurement.