planned process Act of Appraisal An Act of Measuring that involves evaluating, assessing, estimating, or judging the nature, value, importance, condition, or quality of something or someone. Note that, while most if not all Acts of Appraisal involve some estimating and many Acts of Estimation involve some appraising (i.e. these classes are not disjoint), neither class subsumes the other. For example, some Acts of Appraisal (e.g. a tax assessor appraising the value of a building) impart a normative element to the measured value while others (e.g. a gustatory appraisal that fresh green beans taste better than canned green beans) involve complete information. Furthermore, many Acts of Estimation (e.g. estimating the height of a tree) are concerned solely with determining a numerical value (as opposed to the nature, value, importance, condition, or quality).