MODELS AFTER CONCURRENT ENGINEERING PRODUCT DEVELOPMENT PROCESSES

1997 ◽  
Vol 9 (4) ◽  
pp. 641-651
Author(s):  
Yasuhisa Tsuda
Author(s):  
Kariippanon ◽  
Wilson ◽  
McCarthy ◽  
Kõlves

Hanging is a common method of suicide in several countries. Even as global suicide rates decrease, there is no evidence of suicides by hanging declining. There is limited research by type of hanging, and only a few papers present suicide by hanging from ceiling fans. Our paper proposes a research agenda that will: specify the size of the problem of hanging by ceiling fan (Stage 1: Surveillance), use standard engineering product development processes to modify ceiling fans for reducing their lethal capacity (Stage 2: Design Testing and Redevelopment), and examine the resulting beta- and release-build fans for safety and potential to reduce suicide in community samples (Stage 3: Evaluation).


Author(s):  
Samuel Suss ◽  
Vincent Thomson

Product development processes of complex products are complex themselves and particularly difficult to plan and manage effectively. Although many organizations manage their product development processes by monitoring the status of documents that are created as deliverables, in fact the progress of the process is in large part based on the actual information flow which is required to develop the product and produce the documents. A vital element in making product development processes work well is the correct understanding of how information flows and how to facilitate its development. In this paper we describe an executable stochastic model of the product development process that incorporates the salient features of the interplay between the information development, exchange and progress of the technical work. Experiments with the model provide insight into the mechanisms that drive these complex processes.


Author(s):  
J. Schmitz ◽  
S. Desa

Abstract It is well-known that so-called Concurrent Engineering is a desirable alternative to the largely sequential methods which tend to dominate most product development methods. However, the proper implementation of a concurrent engineering method is still relatively rare. In order to facilitate the development of a reliable concurrent engineering product development method, we start with a careful definition of concurrent engineering and, after an extensive study of all of product development, we propose three criteria which ideal concurrent engineering must satisfy. However, for labor, time, and overall cost considerations, ideal concurrent engineering is infeasible. Instead, we propose a computer-based environment which, by being constructed in accordance with the three criteria, attempts to approach ideal concurrent engineering. The result is the Virtual Concurrent Engineering method and computer implementation environment. This product development method and computer-based implementation system provide the detailed, structured information and data needed to optimally balance the product with respect to the main product development parameters (e.g., manufacturing costs, assembly, reliability). This important information includes re-design suggestions to improve the existing design. The designer can directly apply these re-design suggestions for design optimization, or he can use the results as input into a more complex design optimization or design parameterization function of his own. To demonstrate Virtual Concurrent Engineering, we use it to refine earlier work done by the authors in the Design for Producibility of stamped products. We discuss, in some detail, the results of applying Design for Producibility to complex stampings, including process plans and product producibility computations.


Author(s):  
Gritt Ahrens ◽  
Oliver Tegel

Abstract An approach to support the appropriate definition, formulation and presentation of requirements obeying the needs of the employees is being presented. Classifiying the needs for information of the employees according to some characteristics, a guideline for how to promote the information needed by them can be developed. The goal is to ensure that everyone involved in the process — even the subcontractor — has the right information available in the right form at the right time. Defining requirements lists, splitting them into partial requirements lists for each area of the company, each process phase or each team, and then formulating these requirements and presenting them in an adequate way is the proceeding strived for. The result will be implemented into an information infrastructure to support the product development process continuously.


Author(s):  
Götz v. Esebeck ◽  
Oliver Tegel ◽  
Jeffrey L. Miller ◽  
Karl-Heinrich Grote

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.


Sign in / Sign up

Export Citation Format

Share Document