Soft Modeling of Engineering Changes in System dynamics (Case Study : Automobile Industry)

Effective management of engineering changes in the Automotive industry is an essential ability in new product development, and products evolve in an environment with an iterative nature and increasing changes from the idea stage to the final product and shortening the life cycle of products and also the duration of product Launch from The idea-to-market stage is a severe requirement of a competitive environment.First, the complexity of the product development environment, the challenges of engineering changes and the need to control and governance its effects in a competitive environment in the vehicle development process are described. Then by literature review, an approach to modeling engineering change management using two hard and soft models has been introduced.in our modeling approach, the assumptions of cybernetics and system dynamics approaches have been practiced in building causal loop diagrams that integrated SOFT effects with HARD dimension parameters. Using this approach to develop simulation scenarios, strategic managers have better insight into effective management of engineering changes to find appropriate policies configuration to control its effects in a competitive environment.

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Keywords: product life cycle ، new product development system ، Complexity ، engineering change management and hard and soft modeling