Time tracking: Face-ID vs a paper logbook

What is actually being compared

A paper logbook looks free, and that is the whole trap. Its cost isn't the notebook, it's the hours: someone walks the sites collecting signatures, someone copies them into a spreadsheet, someone deciphers an illegible line. Those hours sit in no budget line and so go uncounted — but they recur every month.

The second line item is disputes. A "clocked in at 9:00" written at 9:20 is indistinguishable from an honest one, and neither side has anything to prove. The more shifts and sites you run, the more often this happens and the more each investigation costs.

Where the line falls

Biometrics doesn't pay for itself everywhere. It is more useful to compare the specific conditions your time tracking runs under than to argue "more accurate" versus "cheaper".

• Headcount per site. Up to ten people the manager already knows who showed up; at fifty, memory stops being a data source.
• The cost of an hour. Where an hour is expensive, a fifteen-minute error pays for the hardware faster than you'd expect.
• Turnover. With people changing often, the logbook loses its one advantage — a signature anyone recognises.
• Distribution. One site is a question of discipline; twenty sites is a question of systems.
• Reporting requirements. If time data feeds payroll, it needs a source that cannot be rewritten after the fact.

What to settle before you buy

A terminal is half a solution, not the whole one. Agree in advance what happens when the network drops or the power goes out: if a shift has no fallback way to clock in, the first outage sends you back to paper — this time without any trust in the system.

Handle personal data as its own question: biometrics is a sensitive category. An employee should understand what exactly is stored, for how long and why. Explaining it once at the start is cheaper than answering rumours for six months.