Page 130 - Getting the Picture Modeling and Simulation in Secondary Computer Science Education

Chapter 6
are asked whether they can distinguish the model’s outcomes from the outcomes of the real system (Sargent, 2013).
Structured walkthrough Review Consultation of domain experts Delphi test Turing test
Discuss the model
With others
Figure 11: Validating a model with others
Reflecting on the model takes place alongside with technical aspects of validation, establishing the degree of confirmation (Naylor & Finger, 1967) — and similarly, accuracy (Schmid, 2005) — by determining satisfaction that the desired results were sufficiently achieved (Bungartz et al., 2014) and credibility — i.e. degree of confidence in the model (Brade, 2004) — play a crucial role. Both the modeler and the customer who ordered the model need to be convinced that the model is plausible — i.e. its results do not contradict previously validated theories — and sufficiently fit for purpose (Brade, 2004; Law, 2009; Sargent, 2013).
Plausibility Credibility
Accuracy
Satisfaction
Figure 12: Reflecting on a model
As mentioned in the section on the modeling cycle, any of these actions can be
repeated until a sufficiently valid model is obtained.
Reflect
128