Knowledge graph-based demand influence domain analysis method

The invention discloses a demand influence domain analysis method based on a knowledge graph, and the method comprises the steps: constructing a demand management model, and carrying out the layering, entry and versioning management of demand information based on the demand management model; the method comprises the following steps: carrying out software engineering field modeling by utilizing an ontology construction method, defining and evaluating a field ontology, establishing a mode layer of a demand knowledge graph, carrying out entity, relationship and attribute extraction by utilizing a knowledge extraction method based on combination of rules and semi-supervision, and obtaining a data layer of the demand knowledge graph; combining the mode layer and the data layer in a Neo4j graph database system to obtain a demand knowledge graph; and based on the demand knowledge graph, visually displaying the demand tracking relationship in a graphical mode, and performing demand retrieval and influence domain anal