Abstract
Are "the error approach" and "the uncertainty approach" really alternative with one another, as the International Vocabulary of Metrology - Basic and general concepts and associated terms (VIM3) states, so that assuming the latter implies definitely renouncing to maintain a role for truth in measurement? This paper proposes instead that in the encompassing framework of measurement uncertainty some components of error, and therefore truth, thought of in operative sense, remain and should be taken into account as such. Copyright © (2012) by the International Measurement Federation (IMEKO).