scholarly journals A model for minimizing feedback-length between activities of a project

2021 ◽  
Vol 9 ◽  
Author(s):  
Sheida Shahabadi ◽  
◽  
Jafar Gheidar-Kheljani ◽  
Seyyed Hasan Ghodsypour ◽  
◽  
...  
Keyword(s):  
Project Management ◽  
Product Development ◽  
Pareto Front ◽  
Complete Information ◽  
Design Structure Matrix ◽  
Development Projects ◽  
Percentage Increase ◽  
Economic Justification ◽  
Design Structure ◽  
The Cost

Proper sequencing between activities has always been one of the major issues in project management. Sometimes it is needed to redo some activities especially in product development projects. It is assumed that one of the reasons for reworking some activities and backward can be due to the incompleteness of the information needed when doing them, and also assumed that having complete information requires cost. In this article, a network of activities is considered, which may require a duplication of the process due to the interdependence of information between them. In this paper, using the design structure matrix concept and interdependence between activities, a two-purpose model for determining the proper sequence of activities have been provided to minimize the length of feedback and reduce the cost of completing the information using matrix concept. To accurately solve this model, the combination Lexicographic and Augmented Epsilon Constraint is used to obtain the Pareto National Front, which shows an increase in the cost of reducing the degree of dependence between activities for reducing the feedback length between activities. From the Pareto front, the best answer was chosen in a way that, based on the economic justification of the project, the percentage of reduction in the feedback length would be higher than the percentage increase.

Effective Supplier Involvement in Product Development Projects

2006 ◽  
Author(s):  
Padmavathi K. Pakala ◽  
V. Allada
Keyword(s):  
Product Development ◽  
Development Project ◽  
Design Structure Matrix ◽  
Lead Times ◽  
Development Projects ◽  
Design Structure ◽  
Product Development Project ◽  
Supplier Involvement ◽  
Design Defects ◽  
The Right

In today's scenario, many product development projects run the risk of being over budget and/or run past the scheduled deadlines. A major part of this can be attributed to the lack of effective and realistic product planning. We use the thesis that consideration of appropriate suppliers at the right time in a product development project can reduce wastes like waiting for parts to become available, unnecessary design iterations, design defects and poor design, and mitigate risks related to technology and enterprise capability. In the present paper, we present a methodology for effective supplier involvement in a product development project by blending the Design Structure Matrix (DSM) and the PERT/CPM techniques and considering supplier lead times and component interfaces of a given product architecture. We discuss the various options of supplier consolidation, postponement or early involvement of suppliers, and their effects on the product development project cost and schedule. We will demonstrate the working of the proposed methodology using a case example.

Analysis of Engineering Change Based on Product Development Network

2011 ◽  
Vol 314-316 ◽  
pp. 1607-1611
Author(s):  
Zhong Wei Gong ◽  
Hai Cheng Yang ◽  
Rong Mo ◽  
Tao Chen
Keyword(s):  
Product Development ◽  
Design Structure Matrix ◽  
Complex Activity ◽  
Engineering Change ◽  
Structure Matrix ◽  
Manufacturing Enterprises ◽  
Design Structure ◽  
Development Network ◽  
Motorcycle Engine

Engineering change is an important and complex activity for manufacturing enterprises. In order to improve the efficiency of engineering change, designers should pay different attentions to different nodes of product development network. In that case, a method of classifying the nodes was proposed. First, we proposed a method to cluster the nodes based on design structure matrix; then, we analyzed the indexes for evaluating the importance of nodes and studied the method of classifying the nodes of product development network; finally, the experiment of managing a type of motorcycle engine was employed to validate our method and it showed the correctness of the proposed method.

Research on DSM for Simulation of Concurrent Product Development Process

2008 ◽  
Vol 44-46 ◽  
pp. 595-600
Author(s):  
Xiao Ming Qian ◽  
Dun Bing Tang
Keyword(s):  
Product Development ◽  
Development Process ◽  
Resource Competition ◽  
Time Limit ◽  
Product Development Process ◽  
Design Structure Matrix ◽  
Simulation Algorithm ◽  
Resource Model ◽  
Task Duration ◽  
Design Structure

In this paper a simulation algorithm for concurrent product development process (CPDP) is presented based on Design Structure Matrix (DSM). An aggregate DSM is used to model the CPDP. To simulate the influence on the process of the time limit and the resource competition, the schedule and resource model are established. A method is also advanced to handle task delay. At last a case is used to validate the simulation algorithm and to show the influence on the process of task duration and resource.

Crossing the Valley of Death: Managing the When, What, and How of Innovative Development Projects

2019 ◽  
Vol 50 (4) ◽  
pp. 447-459 ◽  
Author(s):  
Christophe Midler
Keyword(s):  
Project Management ◽  
Product Development ◽  
Management Practices ◽  
Low Cost ◽  
Innovation Process ◽  
Development Projects ◽  
Development Phase ◽  
Specific Content ◽  
Global Innovation ◽  
Valley Of Death

The last few decades have seen a profound transformation of innovation project management within automobile firms. During the 1990s, the product development phase was revolutionized by the deployment of heavyweight project management, project portfolio processes, and platform strategies. The 2000s saw the forces of change move upstream in the innovation process, with the development of new methodologies intended to develop and orient creativity, as well as new upfront units acting as innovation labs. However, many upfront creative endeavors still encounter an innovation valley of death when they move into the rigid and risk-averse development phase. Thus, the frontier of innovative project organization seems to be the ongoing quest to reconcile the emergence of breakthrough innovations in the upfront phase with the more rationalized nature of development phases. Based on a case study of a disruptive low-cost car, this article analyzes how the product development phase can support innovative exploration to overcome the challenge of achieving a major cost breakthrough. We analyze the specific content of the project’s innovations ( fractal innovation) and the management practices and organizations used to implement them. We characterize how such innovative product development can contribute to a new economy of innovative effort within the global innovation funnel of the firm. We compare this global innovation process, where development projects play a major role as a locus for organizational learning, to the customary one in automotive firms, where learning happens essentially in front-end marketing and engineering departments.

Extending Activity Overlapping Model Based on Design Structure Matrix

2010 ◽  
Vol 139-141 ◽  
pp. 1341-1344
Author(s):  
Ting Gui Chen
Keyword(s):  
Product Development ◽  
Development Process ◽  
Product Development Process ◽  
Design Structure Matrix ◽  
Structure Matrix ◽  
Model Based ◽  
Design Structure

Due to shortcomings existing in traditional overlapping model, a new extending activity overlapping model based on design structure matrix considering rework and iteration during activities execution is proposed in this article. Firstly, a tradional overlapping model presented by others is introduced. Sencondly, it is expanded to apply to more general situations using design structure matrix. Subsequently, an example deriving from a certain product development process is used in order to illustrate its effeciency and effectiness

Using the Design Structure Matrix to Estimate Product Development Time

1998 ◽  
Author(s):  
Maria Carrascosa ◽  
Steven D. Eppinger ◽  
Daniel E. Whitney
Keyword(s):  
Product Development ◽  
Development Time ◽  
Development Process ◽  
Product Development Process ◽  
Design Structure Matrix ◽  
Structure Matrix ◽  
Design Structure ◽  
Reduce Development Time ◽  
Stochastic Element ◽  
Coupled Tasks

Abstract This model estimates the probability of completing a product development process over time. The Design Structure Matrix (DSM) framework is used to capture the information dependencies between tasks using the concepts of Probability of Change and Impact. The model incorporates a stochastic element that represents the likelihood of changes resulting in task iterations. The model captures the dynamic behavior of a product development process formed by a combination of parallel, serial and coupled tasks. The model relaxes the assumption that coupled tasks take place in a complete parallel or serial iteration. It can be used to compare the development time of the project for different task sequences and overlapping degrees. This tool allows for identification of the leverage points in the system, providing information about the most effective way to reduce development time. This project was a joint effort with a Hewlett-Packard division, and the observations and practical application presented are based on this field experience.

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