Practice room

One lesson, two completions

Two browser tabs mark the same synthetic lesson complete almost simultaneously. The dashboard count rises by two although there is only one lesson.

  1. 1

    Hypothesize

    Which data rule may be missing?

  2. 2

    Discriminate

    What would you inspect in the stored records and in concurrent requests?

  3. 3

    Fix and verify

    How would you enforce one completion state per learner and lesson without preventing separate quiz attempts?

Your explanation

Use your own words. Include the evidence you would look for and the assumptions you are making.

Use synthetic information only. Notes are saved when you choose Save practice.