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Subjective eyes, objective outcome
17th of September 2026 Article by John Griep
John Griep in the Netherlands tells us more about how a VSR-KMS cleaning inspection operates.
Cleaning inspection starts with something less solid than it looks: an inspector judging a surface by eye. What registers as a fault depends on the light, on the colour and texture of the surface, even on the day. Two inspectors may not see exactly the same thing. That is why VSR-KMS does not rest on any single observation, but on a sample, an approval line and statistics.
Why the outcome does not rest on one pair of eyes
A VSR-KMS outcome is not one impression of one room, and it is not a single score either. Inspectors count faults across a sample of units, and the number of faults allowed is fixed in advance by combining the sample size for a room category with its agreed fault margin. That threshold, the Acceptance Quality Limit, is the approval line: stay under it and the delivery passes, cross it and it fails. Room types carry different limits, because a sanitary area and an office are not held to the same standard.
The approval or rejection therefore does not turn on any single count. It rests on the sample as a whole, measured against a line that was set before the inspection began. Applied correctly, VSR-KMS delivers a reliability of at least 95 per cent.
Measuring or thinking along
That reliability holds only as long as the measurement stays factual, and here the inspector’s own judgement is the risk. The experience of a good controller is worth a lot, but the moment an assumption is written down as a fact, the report no longer says what it claims to say.
The difference shows up in a real report. Take an inspection of 12 office rooms. A vague summary notes that the waste bin was not emptied and there was loose dirt on the floor, with no counts and no link to the sample. A customer can do little with that. Now the version that stays with the facts: in six of the 12 rooms the waste bin had not been emptied, all six on the first floor; across the
sample 26 faults were found against twenty allowed, 21 of them around the waste bins. Same inspection, but the reader now knows what happened and whether the norm was breached.
That rule runs through every VSR report. Observations belong inside the measurement; interpretation, advice and illustration belong outside it, clearly marked as such. An inspector can think along, but not inside the count.
System plus discipline
Objectivity in VSR-KMS is not a single feature. It comes from two things combined: an outcome built on a sample measured against a fixed approval line, and the discipline to keep assumptions out of that measurement. Both have to hold. Get them right, and a subjective pair of eyes still produces a result a customer can rely on.
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