1. A design check knowledge construction method that uses a computer to construct check knowledge for evaluating design information about a design target created during design work, the method comprising the steps of: generating, from input technological basic intelligence, check target knowledge definition data that constructs technological ontology having a tree structure or a network structure and is obtained by defining the check knowledge, which represents a check target field, in accordance with the relationship between a word group and words in the word group; and in accordance with a document data group including a plurality of document data based on knowledge content concerning technological history information, extracting a word group from the document data group associated with the word group in the check target knowledge definition data that constructs the technical ontology and associating words in the word group with each other; and creating a constraint network that is used for a rule check from the word group associated by the step of associating words, wherein the step of creating a constraint network further includes the steps of: displaying a plurality of related link candidates on a display by use of the technological ontology; positioning a word of each node and a node representing the associated word of a network close to each other wherein a broken line is displayed joining the words as one of the related link candidates; selecting the related link candidate from the plurality of related link candidates and finalizing extracted word; preparing a dictionary of terms expressing constraint conditions wherein if the terms contain one of the positioned words of the nodes or the text before or after the node contains a relevant constraint condition term, then automatically performing the steps of: checking the displayed link candidates, selecting one of the constraint conditions, and displaying the candidate as an editing target node; selecting the editing target node from a group of nodes representing an extracted word displayed on the display based on the finalized extracted word; and displaying a text containing the selected editing target node and editing the context.