Material development assistance system and material development assistance method

The material development assistance system includes a first control unit giving, based on input information inputted as the prototype plan of the material and a keyword configuring a keyword tree stored in a storage unit, a prototype ID for identifying the prototype plan, a second control unit associating the keyword corresponding to the input information given the prototype ID with the index of the input information and accumulating the associated index in the storage unit as a tree structure for each classification group, a third control unit determining whether or not the index for the classification group accumulated in the storage unit and the input information are in a predetermined relation and when determining that the index and the input information are in the predetermined relation, reading a past prototype plan using the index from the storage unit, and a fourth control unit outputting a new prototype plan.