Abstract
As companies become aware that they have to restructure their product development processes to survive global competition in the market, it is important that they evaluate which management methods and techniques are suitable to improve the performance of the process and which design methods can be integrated and be used efficiently. A combination of management methods like Total Quality Management (TQM), Simultaneous or Concurrent Engineering, and Lean Development can be adapted to meet the requirements of a company more than a single strategy. Interdisciplinary teamwork, cross-hierarchical communication, and delegation of work in addition to employee motivation changes the common attitude towards the work process in the company and integrates the staff more tightly into the process. Nowadays, there is tight cooperation between companies and their sub-contractors, as sub-contractors not only have to manufacture the part or sub-assembly, but often have to design it. Therefore, the product development process has to be defined in a way that the sub-contractors can be tightly integrated into the product development process. Additionally, it is important to break the product down into functionally separate modules during the conceptual phase of the process. If the interfaces between these functions are defined as specifications, these modules can easily be given to suppliers or to other teams inside the company for further development.
The use of methods such as Design for Manufacture (DFM) or Design for Assembly (DFA) early during the development process, which utilize the knowledge of experts from manufacturing and assembly, results in a decreasing number of iterative loops during the design process and therefore reduces time-to-market. This cross-functional cooperation leads to improved quality of both processes and products. In this paper, different management methods to achieve the best improvement from the product development process are discussed. In addition, suitable design methods for achieving cost reduction, quality improvement, and reduction of time-to-market are presented. Finally, proposals for industry on methods to reorganize the Integrated Product Development (IPD) process based on actual findings are presented.