The model validation methodology includes model testing at relationship level betweenobjectives and indicators, for the purpose of identifying the means through which a seriesof indicators from the model may respond to the strategic need of providing valid information for the tactical managerial decisions. This relationship among objectives,indicators and PIMAR cycle(Planning-Implementing-Measuring-Analysing-Readjusting) can be validated by proving the fact that the indicators can be used to obtain sensible data regarding the evaluated system. The data collected must be sensible enough to be used within PIMAR cycle, through the management decisionsthat are made following the interpretation of the indicators under study.