What you see when you count every piece, line by line

A factory's daily output usually arrives in the evening as a single total. That number tells you whether the factory produced a lot today. It does not tell you which line was slow, or why. SeamStream puts a device at each workstation and counts every time a piece is finished. Here is what that kind of counting showed, based on records from a customer's factory.

How the counting works

The TAP sits at each workstation, and the operator presses it once for every piece finished. Each press shows the running count for that station on screen. A docking station (DS) reads the QR or RFID tag on the bundle, and the result appears on the TAP screen. A collector on each line (LSU) gathers these records, and it keeps collecting on the floor even when the factory's internet goes down.

Defect records come from the QC tablet at the end of the line. When the inspector taps defect or pass, the inspected count is recorded straight away.

Because every piece carries a timestamp, nobody has to measure standard time by hand. Standard time is calculated from the gap between consecutive pieces, and the first piece of the day is left out of the calculation because there is no gap before it.

What the daily total was hiding

We went back through the records of one building at a customer's factory, line by line, from 30 October 2025 to 18 February 2026. On the same style, speed differed by up to 1.8 times depending on the line. Five lines went over 1,000 pieces a day, and those five produced 42.5% of the building's output. Days that looked ordinary in the building total turned out, line by line, to be carried by a handful of lines.

A total that arrives after the day is over also cannot tell you whether things are running well right now. So we designed a draft monitoring board that shows output for each process inside a line in 30-minute bars.

How it differs from paper

People fill in paper records. At first our app also had a field for typing in quantities. But numbers operators entered on their own, plus duplicates from labels that were reprinted, made the counts wrong. So in the next version we decided to remove the manual quantity field. The devices do the counting.

There are also places where paper does not go away easily. On the floor, people change a schedule by writing a new date over the printed one. If the screen cannot take that kind of correction, the paper stays next to the screen. Paper use only goes down when the screen can take the corrections people make on paper.

In short

Count every piece and you see how differently each line runs on the same day. SeamStream's devices and screens are at https://ssm8.app/.