System Dynamics by Bilash Kanti Bala Fatimah Mohamed Arshad & Kusairi Mohd Noh

Author:Bilash Kanti Bala, Fatimah Mohamed Arshad & Kusairi Mohd Noh
Language: eng
Format: epub
Publisher: Springer Singapore, Singapore

Next it would be logical to skip the structural tests and apply behaviour pattern tests. Once we have reached the final step of the behaviour pattern test, we should give emphasis on the accuracy of the pattern predictions. However, behaviour pattern tests are weak tests that provide no information on the validity of the structure of the model. Behaviour pattern tests must be carried out in logical order too. Figure 6.7 shows the logical sequence of behaviour pattern tests. If the problem involves transient and highly nonstationary behaviour, it is not possible to apply any standard statistical measure. On the other hand, if the problem involves a long-term simulation, it is possible to apply standard statistical measures and tests. Note that if the model is considered to fail the behaviour pattern tests, once again we should go back to model revisions, and the model revisions involve parameter/input changes rather any other tests .

Fig. 6.7Logical sequence of behaviour pattern tests

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