1For eleven years, workers at a regional food distribution warehouse recorded their hours on paper timesheets. A supervisor collected the sheets every Friday, and a payroll clerk typed them into the payroll system the following Monday. Last spring, the company replaced the paper with a time clock app that workers open on their phones at the start and end of each shift. The change was expected to settle the arguments about hours that surfaced nearly every pay period. It did not settle them. It moved them.
2The two systems differ first in who produces the record. On paper, the worker wrote down the hours, and a supervisor's signature confirmed them. With the app, the phone produces the record automatically, and no one signs anything. Paper made the worker the author of the timesheet; the app makes the worker its subject.
3The app is clearly better at arithmetic. Paper sheets arrived with smudged numbers, overnight shifts added incorrectly, and handwriting the payroll clerk had to guess at. Because the app calculates totals itself, those errors have nearly disappeared, and the clerk no longer spends Monday mornings calling workers to ask what a number was supposed to be.
4That same automation, however, has created disputes that paper never did. Whereas a forgotten entry on paper could be written in at the end of a shift and initialed by a supervisor, a forgotten tap in the app leaves a gap that takes a correction request and several days to fix. The app also records the moment a worker presses the button, not the moment the work begins. A worker who starts unloading a truck before reaching for the phone is unpaid for those minutes unless someone notices.
5Neither system, in other words, ends disagreements about hours. Paper produced errors of arithmetic, which were easy to spot and easy to argue about. The app produces errors of omission, which are harder to spot because the record looks complete. A warehouse choosing between the two is not choosing whether to have disputes. It is choosing which kind.