Why popular methods of assessment of real estate lead to results contrary to common sense (the question of safety good appraiser)

The author analyzes the situation, when the judgment, made in accordance with standards and regulations, lead to absurd results. It indicates that one of the reasons for this may be the result of low resistance to the evaluation of uncertainty in the initial data - a property inherent in the methodology. In the example demonstrates that the result of evaluation can vary by tens of times when you change the source data for a few percent. Offers explore all recommended authoritative bodies assessment methodology for sustainability evaluation of the original data and be sure to specify the conditions and limits of application.