Influence factor analysis of product development process

In the product development process considering design iteration, it´s more difficult to reflect interrelationship between variables with simulation analysis. Especially there is no certain function expressing the effect of parameter interrelationship on the product development time. The existence of iteration complicates the structure of analytic model, and the metamodel can simplify the problem and reduce the costs. The paper analyzed the impact of the parameters on average completion time of product development in design structure maxim by building the metamodel, and identified the main impact factors.