scholarly journals Simulation and optimization of overlapped iteration process with multi-coupled activities based on value analysis

2018 ◽  
Vol 27 (1) ◽  
pp. 57-67 ◽  
Author(s):  
Fupeng Yin ◽  
Qi Gao ◽  
Xue Ji

The appropriate iteration process model is the basis for managing and optimizing the product development process. In this article, we attempt to introduce the concept of process effectiveness and process value. The relationship between rework probability and process effectiveness is discussed. The evolution function of process effectiveness is proposed to drive the overlapped iteration process of multi-coupled activities. The evolution process with input information update is studied, and a simulation model is presented to obtain the accurate iteration process of development. It is useful to analyze the risks during development, and has good flexibility and versatility. The calculation method of process value for overlapped iteration process is given, and an optimization model for product development process is provided. The model is used to improve the development process of the stamping die of a car roof. With the model, we can get a suitable overlapping rate of multi-coupled activities to improve development performance.

Revista Foco ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 63
Author(s):  
Ricardo Oselame Schiochet

O presente artigo pretende investigar de que forma as mudanças no comportamento do mercado e o crescimento da consciência ambiental tem feito com que os consumidores mudem sua postura e exijam das empresas uma readequação de processos com vistas a adotar métodos de gestão mais alinhados com a questão da sustentabilidade e principalmente dos impactos ambientais de suas ações. Sendo assim, o principal objetivo deste artigo é compreender de que maneira empresas de diferentes segmentos estão implementando os conceitos e ferramentas de ecodesign em seus processos de desenvolvimento de produto. Para tanto, foi realizado um levantamento teórico em periódicos da área, além de um estudo exploratório de campo baseado em entrevistas em profundidade, que mostrou que a motivação das empresas para a adoção de práticas de ecodesign ainda é limitada a cumprir exigências legais, ou como forma de redução de custos. Sob uma perspectiva mercadológica percebe-se que o marketing exerce pouca influência na relação entre o ecodesign e o processo de desenvolvimento de produtos.   This article intends to investigate how changes in market behavior and the growth of environmental awareness have made consumers to change their posture and demand from companies a process readjustment with a view to adopt management methods more in line with sustainability and especially the environmental impacts. Therefore, the main objective of this article is to understand how companies from different segments are implementing ecodesign concepts and tools in their product development processes. For that, a theoretical survey was carried out, as well as an exploratory field study based on in-depth interviews, which showed that the motivation of companies for the adoption of ecodesign practices is still limited to complying legal requirements, or as way of reducing costs.  From a marketing perspective, it is perceived that marketing has little influence on the relationship between ecodesign and product development process.


2020 ◽  
Vol 24 (3) ◽  
pp. 517-532
Author(s):  
Rachel Parker-Strak ◽  
Liz Barnes ◽  
Rachel Studd ◽  
Stephen Doyle

PurposeThis research critically investigates product development in the context of fast fashion online retailers who are developing “own label” fashion clothing. With a focus upon inputs, outputs, planning and management in order to comprehensively map the interplay of people, processes and the procedures of the product development process adopted.Design/methodology/approachQualitative research method was employed. Face-to-face semi structured in depth interviews were conducted with key informants from market leading fast fashion online retailers in the UK.FindingsThe major findings of this research demonstrate the disruptions in the product development process in contemporary and challenging fashion retailing and a new “circular process” model more appropriate and specific to online fast fashion businesses is presented.Research limitations/implicationsThe research has implications for the emerging body of theory relating to fashion product development. The research is limited to UK online fashion retailers, although their operations are global.Practical implicationsThe findings from this study may be useful for apparel product development for retailers considering an online and fast fashion business model.Originality/valueThe emergent process model in this study may be used as a baseline for further studies to compare product development processes.


2020 ◽  
Vol 28 (3) ◽  
pp. 210-221
Author(s):  
Gyesik Oh ◽  
Yoo Suk Hong

Many companies adopt concurrent engineering in their product-development projects in order to reduce time to market. Concurrent engineering requires careful management, since the uncertainty of transferred information leads to rework and renders a development process complex. Most of the existing studies on concurrent engineering have analyzed overlapping between two activities. The present study expanded the research scope by modeling the developmental process of the concurrent execution of multiple activities as the result of management decisions, the overlapping ratio, and the information transfer frequency. When multiple activities are overlapped, it is more difficult to model a development process, since the uncertainty of cascaded information has impacts on many activities. The quantitative model developed in the present study provides insights into the uncertainty of information and the product-development process. Based on the generalized process model for multiple-activity overlapping, the optimal decision to minimize project duration was considered. As a solution to the dilemma of the high computational burden of considering all feasible decision sets, this paper proposes a myopic heuristic. The project management heuristic proposed in this paper is intended to assist managers in the decision-making process, as well as reducing the intermediate deadlines in project main plan.


Author(s):  
Håkan Petersson ◽  
Damien Motte ◽  
Martin Eriksson ◽  
Robert Bjärnemo

When developing products, engineering designers often face the problem that their candidate for a technical solution, ranging from a concept to a detailed design, needs to be analyzed by a design analyst before it is approved or rejected and the engineering designer can continue his/her activities within the product development process. If engineering designers have to send every solution candidate to a design analyst, a lot of time and money is lost. To avoid this, some Swedish companies have started to allow their engineering designers to use the analysis capabilities imbedded in modern CAD/CAE software. In the literature on product development and on computer based design analysis (CBDA) both processes are fairly well described. However, this cannot be said about the interaction between the two processes. This is a growing issue as it represents core knowledge for developing efficient and effective integration concepts, which in turn can be developed into likewise efficient and effective approaches on how to assist the engineering designer to perform parts of the CBDA process on his/her own. Note that when we refer to CBDA here, this is confined to the use of FEM in the development of products, primarily based on working principles originating from the area of Mechanical Engineering. Since we have been working on a process model for the integration between engineering design and design analysis, this has inspired us to utilize findings from these efforts to propose a conceptual model for a design analysis process driven by the engineering designer to be integrated into the product development process. The proposed design analysis process model is based on the use of predefined analysis methods or templates. Templates are also utilized for QA (Quality Assurance) and monitoring of the analysis activities. Responsible for the development of the analysis methods and the templates are expert design analysts, who develop these tools within a technology development process. Before allowing the engineering designers access to them, these tools need to be approved by relevant bodies within the industrial enterprise and/or by external sources such as those responsible for certification and risk management. In this paper we present the development of the proposed integrated design analysis process model and an industrial case study, which incorporates a non-linear design analysis activity, utilizing the FEM-program Abaqus within the CAD-software Catia V5 and its imbedded optimization module.


2013 ◽  
Vol 299 ◽  
pp. 176-179
Author(s):  
Xue Peng Liu ◽  
Dong Mei Zhao

The process -oriented product process model is established. The map of process model and product development is built. On the basis of product development process model, a model DMPA (Product development process model based on the process or action) is proposed. The algorithms of process deletion and recursion are put forward to implement the application system.


Author(s):  
Ho-Jin Hwang ◽  
Soo-Hong Lee

Abstract This study proposes a process information model which can integrate various activities during the product development process, and develops the system which can manage the process. Development process information will allow designers and managers to access previous tasks readily arid utilize the information in making decisions at hand. While developing products in heterogeneous and distributed environments, concurrent and collaborative designs can be achieved by STEP. The process model in this study divides the. task of product development into two fundamental parts, Specific Process (SP) and Normal Process (NP). SP includes the specific information and refer to those defined by prior STEP. NP is routine process excluded from being defined as SP. Due date information can be added to manage development pace and to show delayed tasks. As two or more different processes can be linked to show the entire development flow, static STEP information can be dynamically interlaced. Remote location operations cm be incorporated on the Internet using STEP, and information can be shared. The system has been built upon a process model schema so that task stage, design history, and different development style can be managed and accessed for each component. The system has been proven efficient in information management and exchange by several scenario testings.


Author(s):  
Stefan Schork ◽  
Eckhard Kirchner

AbstractPrototypes are often used as a tool in the product development process and their usage is advised in many guidelines, frameworks and product development methods. Those prototypes achieve different goals of which most relate to getting new insights and information about the product in development. For the development of those prototypes however, significantly less development methods are available compared to the number of methods for the development of products. Investigating the process of using a prototype leads to the idea that the main purpose of those prototypes is describable as learning about the product. This idea is elaborated further and followed by the introduction of the detailed process model for prototyping which is primarily based on the detailed process model for products. However, the purpose of the prototype differs from the purpose of the product which leads to some significant changes of the model. To give an example of a prototyping process, the development of a sensor- integrating elastic claw coupling is introduced and analysed. In addition, this paper discusses the question, how other product development models may be applied to the development of prototypes.


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