Room 7 of 10

Let the records challenge the story

Our question

What should we investigate before changing staffing?

Back at Harbor Coffee

Here are three observed orders from September 14. They are not Maria’s September 15 purchase. The two mixed orders took ten minutes each; the latte-only order took five. In both mixed orders, food became ready after the drink.

Sam says he was switching between payments and packing food. That account gives us something to investigate. Three orders do not establish a permanent bottleneck, and this sample does not tell us that a particular staffing change will solve the problem.

September 14 observations · complete orders at handoff
Order	Contents	Accepted	Drink ready	Food ready	Handoff
9818	Latte and muffin	08:01	08:05	08:10	08:11
9819	Tea and bagel	08:02	08:04	08:11	08:12
9820	Latte only	08:03	08:07	Not applicable	08:08

Try a modeling decision

Choose a next step that would test the explanation.

Choose a view to see what it makes visible.

On the whiteboard

Purpose → What should we investigate before changing staffing?

Read the worked explanation

Investigate why food was ready later and how often that occurs. The original drink-preparation explanation is challenged by this sample. Its source remains a scripted AI suggestion; only its validation changed.

Room not yet explored. Capstone progress is separate.

Inspect the source

Three observed orders

Supplied recordsupported

The two mixed orders took ten minutes each. Food became ready after their drinks. The latte-only order took five minutes.

September 14, three orders only. Investigate food packing; this sample does not establish a permanent bottleneck.

Sam’s handoff

Participant accountunchecked

During those orders, I kept switching between taking payments and packing food.

Account of the observed period. Further observation can test the explanation.

A plausible AI suggestion

Scripted AI illustrationchallenged

Drink preparation may be the bottleneck. Adding another barista might reduce the wait.

Scripted illustration of an inference. It is not an observation of this shop.

Name the concept

Bottleneck: A part of a process whose limited capacity constrains the flow of work. A delay or queue is a clue, not proof of which capacity constraint governs the process.