Varisai — வரிசை

The idea

The queue lives where the queue is

Every number is written to a log on the machine at the desk. That is the record — not a copy of one held elsewhere. Pull the network cable out and the morning carries on exactly as it was.

No waiting on a server to answer

Calling the next person is a local write. It happens in the time it takes to press the button, on a rural line or none at all.

A number issued blind says so on its face

If a counter tablet loses the main machine it keeps giving out numbers, marked M-15a, so nobody is handed a number somebody else already has.

The day is closed, backed up and reported

Closing the day writes the backup first and can copy it to a second drive. Numbers start again at 1 tomorrow.

Reception · the desk

Consultation District Head Hospital

12 waiting

Now serving

C-24

Room 1
since 10:38

C-25 Lakshmi R. Emergency

C-26 Anand K. 11:00

C-27 Fathima S.

Call next · Space

What it will not do

Three promises the design keeps, not the policy

These are not settings somebody can get wrong. They are how the thing is built, and there are tests that fail if any of them stops being true.

A visitor's name stays on the device

Names are typed at the desk so the desk can call somebody properly. They are never sent to us or to anyone else.

Boards show numbers, never names

A wall screen is refused names over the network, not merely told not to draw them. Anybody in the corridor sees C-24 and nothing more.

The queue keeps running unplugged

Nothing here waits on us to answer. A venue with no internet loses the phone features and keeps its queue. The licence is the one thing that has to be renewed, and even that is checked on the device.

At the door, and in the room

Each screen does one job

A device is told what it is for and shows only that. A tablet on a counter in a public corridor does not carry the day's takings or the venue's settings.

Kiosk at the door

One big button per department and nothing else. A visitor takes their own number, confirms it, and the slip prints if a printer is attached.

One screen in a consulting room

A phone or tablet beside one doctor, showing a single Call next button. Nothing to read, nothing to tap by mistake.

The office machine, behind a PIN

The report and the settings sit behind a PIN wherever they can be reached. Forget it and the venue's own setup code clears it — no support call, no deleting files.

Kiosk · inside the entrance

Consultation See the doctor · about 25 min

Pharmacy Collect medicines · about 6 min

From a phone

Two questions, and nothing the venue did not mean to publish

Scanning the code on the board asks one thing: take a number, or follow one you already hold. It does not list the venue's departments and it does not say how many people are waiting.

The number is real before it reaches the phone

What arrives on the phone is a real number in the venue's own queue, already on the board — not a booking reference the desk has to honour later.

A code that changes every few minutes

Venues that only take people who are actually in the building show a code on the board that rotates. No app, no account — and a code photographed yesterday is no use today.

Told when it is nearly their turn

A visitor who signs in once gets a push when their number comes up. SMS is available where a venue has bought it and registered the sender.

District Head Hospital

What would you like to do?

Take a number

I already have a number

Watching a queue needs no account, and nothing you see here is sent anywhere.

Six starting points

It speaks the trade it is installed in

Choosing a business type sets the words on every screen, seeds the queues, and decides whether visitors are handed on from one to the next. Every word can then be changed.

Clinic மருத்துவ மையம்

Rooms and a doctor each. Patients move from consultation to pharmacy on one visit.

Room · Doctor · Patient · Emergency

Hospital மருத்துவமனை

Departments running their own queues at once, with a wall screen in each corridor.

Department · Counter · Patient · Emergency

Bank வங்கி

Counters and a token from the door, with priority for senior citizens.

Section · Counter · Customer · Priority

Government office அரசு அலுவலகம்

Windows, long mornings, and a printed slip that says where to stand.

Section · Window · Applicant · Priority

Salon சிகையலங்கார நிலையம்

Chairs rather than counters, and appointments booked for a time later today.

Station · Chair · Client · VIP

Restaurant உணவகம்

Tables with different numbers of seats, a party size on every booking, and two small parties sharing a big table when that is what fits.

Seating area · Table · Party · Priority

The day, measured

What actually happened, not what was planned

The waiting time a visitor is shown is the one this venue has measured on itself. Until it has enough of a day to be sure, it says the number is rough rather than dressing up a guess.

The day on one screen

Seen, average wait, average service, no-shows — per department, and across the week once there is a week of it.

People to call back

Who was missed today, with the name and number the desk took — on the desk's screen only, and never in the file that leaves the building.

A backup of every closed day

Written when the day closes, copied to a second drive if you name one, and restorable onto a replacement machine.

Report · today

Department	Seen	Wait	Service
Consultation	48	22m	7m
Pharmacy	44	6m	3m
No-shows	3	—	—

The detail

What you are actually installing

Runs on: Windows for the reception PC and the wall screens; Android for counter tablets and the room screens. A separate app for visitors who want to be told on their phone.
Several devices: One machine holds the queue and the others follow it over the venue's own WiFi. If that machine dies mid-morning, another can take over without anybody reconfiguring the network.
Languages: English and Tamil throughout — the desk, the wall, the printed slip and the spoken announcement. A visitor's phone follows their own phone's language.
Announcements: Numbers read aloud in the waiting room, in either language, from recorded clips rather than a robotic voice.
Licensing: Every site runs on a licence we issue, the free plan included. It is checked on the device itself against a signed file, with no call home, so a venue with no internet is never waiting on us to start its day. A licence that has run out keeps working for a month of daily warnings; past that, Varisai stops opening until it is renewed.
Updates: The app asks the venue's own service what the current build is and offers it. Nothing installs itself in the middle of a morning.