Model Generation Based on Network of Variable Conversion Relationship

In order to manage and organise the basic elements and knowledge of the model for model generation, this paper defines the basic elements as entity, attribute, variable conversion relationships and the conversion rules, takes the network of variable conversion relationships (NVCR) to describe the relationships between entity and attribute in system, and represents and manages the basic elements and knowledge in modelling; Then constructs the model generation environment and bring forward the search algorithms of reach-relationships based on the NVCR; Finally succeeds in model generation in the form of generating the expression chain of variable conversion from the known variable to the unknown target variable.