inter-observer variabilityphysiologyQC
Why two observers look at the same sample and still disagree
Inter-observer variability is not a matter of carelessness. It is a structural phenomenon rooted in the physiology of the human eye.
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Blog
Articles on colour perception, observer qualification and the science behind professional colour assessment.
ASTM E1499auditcertification
ASTM E1499 explained: what does an auditor expect from your colour assessors?
The ASTM E1499-16 standard is regularly cited during audits. What does the standard actually require, and how do you comply?
Read article →colour scienceobserverpsychophysics
Colour does not exist without an observer
Colour is not a property of an object — it is a perception. This has far-reaching consequences for every professional context.
Read article →organisationqualificationteam report
Why the difference between your colour assessors is an organisational issue
In most organisations, inter-observer variability is an invisible problem. It only becomes visible when there is a conflict.
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