(4) VALIDATION / 2
Validation is not a “once and forget” task, but is an integral part of the life cycle of the software.
At least four forms of validation/testing that models should undergo.
(ii) functional validation,
(iii) qualitative validation and
(iv) quantitative validation.
Uniformed users often ONLY consider quantitative validation!
However there is a general lack of suitable quantitative validation.
Due for most part to scarcity of suitable experimental benchmark data. Often inappropriate data is used for this purpose!!