After you ship

The change is live. Make the system tell you it is wrong before a customer does.

  1. Stop 1, next

    Notice copies drifting drift detection

    Think of it when the same fact is kept in more than one place, such as a price, a setting or a list of users.

    StartAbout 3 minutes. The word for it comes at the end.

  2. Stop 2, next

    Let it tell you logs, alerts

    Think of it when code runs where you cannot watch it, such as on a server or on users' phones.

    StartAbout 3 minutes. The word for it comes at the end.

  3. Stop 3, next

    Explain the number measurement

    Think of it when someone reports a speedup, a slowdown or a success rate, and a decision depends on it.

    StartAbout 3 minutes. The word for it comes at the end.