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Uncertainty analysis

is closely related to sensitivity analysis. It is used to examin the reliability of Model predictions, by taking into consideration various sources of uncertainty.

utility model

A utility Model is a statutory monopoly granted for a limited time in exchange for an inventor providing sufficient teaching of his or her invention to permit a person of ordinary skill in the relevant art to perform the invention. The rights conferred by utility Model laws are very similar to those granted by patent laws, but are more suited to what may be considered as "incremental inventions". Terms such as "petty patent", "innovation patent", "minor patent", and "small patent" may also be considered to fall within the definition of "utility Model". (Source: en.wikipedia.org/wiki/Utility_Model)