1. A model creation support system capable of accessing an information processing apparatus that predicts or analyzes a phenomenon to be a target for prediction or analysis, using a model that is data indicating the phenomenon as an objective variable in a regression equation utilizing an explanatory variable corresponding to a factor contributing to the phenomenon, the system comprising: a model managing part that acquires an identifier of the model, phenomenon data indicating the phenomenon to be a target of the model, the regression equation of the model, factor data indicating the factor corresponding to the explanatory variable included in the regression equation, and evaluation data containing a fitting degree of the model from the information processing apparatus, and accumulates them in a model recording part accessible from the model creation support system; a factor value extracting part that, regarding at least one model, refers to the factor data corresponding to the explanatory variable in the regression equation of the model and the evaluation data on the model in the data accumulated in the model recording part, thereby generating factor value data indicating a degree to which the factor indicated by the factor data contributes to enhancement of the fitting degree of the model and recording the factor value data in a factor value recording part accessible from the model creation support system so that the factor value data is associated with the phenomenon data indicating the phenomenon to be a target of the model; a condition acquiring part that receives a request for supporting model creation from the information processing apparatus, and further receives an input of model condition data containing data indicating a phenomenon to be a target of a requested model; and a model proposing part that matches the data indicating the phenomenon to be a target of the requested model contained in the model condition data with the phenomenon data associated with the factor value data in the factor value recording part, thereby extracting a recommended factor capable of contributing to the enhancement of a fitting degree of the requested model and outputting support data containing data indicating the extracted recommended factor to the information processing apparatus.