An audit that earns its fee goes beyond a compliance checklist. Most audits, whether commissioned by a buyer, a certifying body or the factory itself, confirm that documented processes exist. A useful audit asks the harder question, which is whether those processes produce the outcomes they claim, and how much capacity the factory genuinely has left against what it has already promised other people.
Capacity is the part most audits handle poorly. A stated maximum is what is possible in ideal conditions, with full staffing, no breakdowns and a convenient product mix. Sustainable capacity is what a factory can actually deliver week after week across a quarter, allowing for absence, maintenance, the time lost changing between products and the ordinary variation of any operation. The gap between the two is large and frequently misunderstood by both sides.
A serious audit produces sustainable capacity by line, by product type and by season, set against the commitments the factory already holds. What remains is the capacity actually available for your orders. Without that, a buyer is negotiating against an optimistic number, and the resulting promises break at exactly the moment a delivery date matters.
The second discipline is checking what happened after past failures. Every factory has had them. What matters is whether the corrective actions described on paper produced any change on the floor. A useful audit traces a specific failure through to the change that followed and looks for it in the operation. An audit that reads the report and ticks the box has confirmed only that somebody can write a report.
The third discipline is talking to the people running the lines rather than to the management office. The real picture of quality and capacity lives with the supervisors, and an hour spent with them usually produces a more accurate account than a day of meetings upstairs. It is also where you learn which machines are temperamental and which orders the floor quietly dreads, neither of which appears in any document.
A fourth point, often missed, is seasonality. A factory assessed in a quiet month will describe a version of itself that does not exist in the weeks before a peak. Where the audit cannot be timed for a busy period, ask for the output records covering one, and read those instead of the summary.
We buy cloth rather than garments, and we own no factories, so our audits are the buyer's kind rather than the owner's. The disciplines are the same either way. Sustainable capacity is the number that drives planning, corrective actions are verified rather than accepted, and the conversation that matters happens on the floor.
The point of all of it is a capacity number that holds up under pressure. An audit that produces a comfortable number and a late shipment has cost more than it saved, and it will usually have been the cheaper audit to commission.
