Timing the queue on two days is real evidence, and it is the strongest part of this canvas. The test plan needed a number that would prove you wrong before you started. Writing it after day 2 makes the result easy to explain away.
Cut the Canteen Queue
Rubric Scores
Average of 3 reviewers, each scoring 1 to 4- Problem clarityStrong · clear who and why3.7
- Customer evidenceGood · real counts, small sample3.0
- Cost and priceGood · break-even shown3.3
- Test planNeeds work · no kill number set2.7
- What you learnedStrong · honest about the misses3.7
Your Canvas
The lunch queue at our canteen often lasts most of the break. I timed it on two days and counted who gave up and left.
2 pieces of evidenceStudents who buy a hot lunch, especially those with clubs straight after eating.
Pre-order slips handed in at morning registration; bagged lunches wait on a pickup shelf by the door.
- Fee per order
- 0.50
- Profit each
- 0.40
- Break-even
- 50 orders
Run pre-orders for two classes for five school days and count orders each day.
130 orders over five days (14, 22, 31, 29, 34). I passed break-even on day 3. Next time I would ask the canteen staff first.
Reviews3
Your break-even maths checks out. The risk you didn’t cover is the canteen itself: if the staff say no to the shelf, the plan stops. Talk to them before round two.
Orders climbed from 14 to 34 in a week, but two classes is a small group. Would the shelf still work with ten classes? A second week with more classes would tell you.