Chapter 14 - key points

Most trees will need revisions after testing. If these are more than minor tweaks, they should be re-tested to confirm that they fix the observed problems.

Re-testing results in a better structure, shows that the organization is willing to try out ideas, and lets the project team “prove” that their final design is better than previous ones.

In general, we discard trees (or elements) that didn’t perform well, and pursue those that did, documenting our rationale as we go.