A model for indirect measurement

The search for a general model/theory for measurement is a hot topic in the current debate in measurement science. A relevant point, in this context, is to consider whether direct and indirect measurement require different models or can be reduced to a common basis. It is here suggested that a common framework can be developed, although its implementation involves significant differences, especially in term of complexity, especially in regard of calibration. Therefore, in this perspective, direct and indirect measurement share a common foundation. Furthermore, an evolutionary perspective is here adopted, where the development of measurement is not subordinate to that of the related discipline, but it may rather proceed in parallel with the evolution of the discipline and even support and stimulate such evolution.