Opening, mid-shift and closing
Each station has its checklists. A lead or manager signs them off, and temperatures are checked against food-code limits as they are entered.
Case study · Magnolia Synergy
Shift checklists for one tablet and a whole team.
In a counter-service store, one tablet on the counter is shared by everyone on shift. We built Magnolia Synergy's station checklists for that tablet: each one belongs to the store's business day, saves as it is filled in, and becomes a closed record once a lead approves it.
IRIS (Integrated Reasoning & Intelligence Steward) is our planning assistant. The scoping page saves your answers to your own computer as a file, then offers a link to email them to us.
The problem
Many hands, one screen, and a day that ends after midnight.
A shared tablet is put down mid-task, picked up by someone else, and sometimes left asleep. Two quick taps can race each other to the server. A closing checklist is often finished after midnight, when the calendar date has already moved on.
Each of those is a way to lose an answer, or to bring yesterday's answers back onto this morning's checklist.
What we built
Checklists that belong to the store's day.
Kept to the business day
Each checklist belongs to the store's business day, not the calendar date, so a closing checklist finished after midnight is still last night's.
Put down, picked up
A checklist can be saved as pending and appears in a list the whole shift sees, including one saved on another tablet.
Closed once approved
Once a lead approves a checklist it is a closed record. The server refuses any later change, and the screen does not offer one.
How we built it
Every rule is a tested function.
- 01
Decisions outside the screen
Which checklist to resume, which count as today's and when a day has ended are small functions, each tested by behaviour rather than through the screen.
- 02
Saves in order
Answers are sent one save at a time, in the order they were given. A save that fails takes the one waiting behind it with it, so the screen never stores an answer it has just said did not save.
- 03
One number, two places
The hour a day ends is the server's own number, and a test reads it from the server's source so the tablet and the server cannot disagree.
The result
Small numbers that decide a shift.
- Overnight carry-over
- 4 a.m.
- A checklist from the day before can still be saved and submitted until 4 a.m. store time.
- Autosave after typing
- 1.5 s
- Typed notes on a pending checklist save themselves 1.5 seconds after the typing stops.
- Shared list refresh
- 60 s
- A checklist saved on another tablet reaches this one within a minute, without a reload.
- Automated test cases
- 235
- In 15 test files for the checklist tablet alone.
Measured 6 October 2026, from our main engineering repository as it stood that day.
Tell us what you need built.
Describe your systems, your reports and where the time goes on the IRIS scoping page. You keep a copy, and an engineer reads it before we talk.