Testing protocols model system selection

The final goal of models used for testing or screening is to verify whether a special condition or feature is present or not. In this case the model system should be selected a priori based on scientific consensus and the testing protocols must be standardized in order to obtain comparable values when the same test is performed by two different laboratories or operators. Moreover, the existence of standardized methodologies could be very useful for regulators which need a certain degree of reliability to make appropriated decisions. 

Once a mathematical model has been formulated, the researcher has the means to test his ideas and evaluate his concept of the system. In addition, different experimental situations can be simulated to select optimal protocol for experiments. 

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