• Title/Summary/Keyword: process-based Design

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Discrete Optimum Design of Space Truss Structures Using Genetic Algorithms

  • Park, Choon Wook;Kang, Moon Myung
    • Architectural research
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    • v.4 no.1
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    • pp.33-38
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    • 2002
  • The objective of this study is the development of discrete optimum design algorithms which is based on the genetic algorithms. The developed algorithms was implemented in a computer program. For the optimum design, the objective function is the weight of space trusses structures and the constraints are stresses and displacements. This study solves the problem by introducing the genetic algorithms. The genetic algorithms consists of genetic process and evolutionary process. The genetic process selects the next design points based on the survivability of the current design points. The evolutionary process evaluates the survivability of the design points selected from the genetic process. The efficiency and validity of the developed discrete optimum design algorithms was verified by applying the algorithms to optimum design examples.

Environment Design Process Based on Systems Approach (체계적 접근방법에 의한 환경설계과정에 대한 고찰)

  • 이재익
    • Archives of design research
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    • v.2 no.1
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    • pp.99-106
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    • 1989
  • Environmental designers face a wide range of problems to be solved in their day-to-day works. The scale and number of problems and so enormous that designers should be a way out to meet these complex situation. Lately, environmental design process based on systems a.pproach is chosen for design methodology. It is a very complicated procedure with many alternatives. It is a evolutionary process that establishes the solution of a series of problems. This study attempt to tell the designer how to find design solution to problems and how to organize form as solution problems. The model of this design process is largely composed of three phases; Phase I : Problem definition and existing system analysis. Phase II : design goals and objectives, design criteria Phase III : creative process of design form.

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Pattern-based Analysis of Ubiquitous Process Design Based on Active Rules (능동형 규칙 기반 유비쿼터스 프로세스 설계의 워크플로우 패턴 분석)

  • Jung, Jae-Yoon;Park, Jong-Hun
    • The Journal of Society for e-Business Studies
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    • v.14 no.1
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    • pp.35-56
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    • 2009
  • Many process modeling techniques, such as Petri-net, UML Activity Diagram, and EPC, are used to design process models. In this paper, we analyze ubiquitous process design based on workflow patterns. In particular, we focus on process design using active rules that have the form of Event-Condition-Action, and deal with the WS-ECA language, which was devised for ubiquitous web services coordination. We first check whether workflow patterns can be designed with ECA rules, and we then provide WS-ECA representations for ECA rules of the patterns. The contribution of this paper is that ECA rule-based process models were presented based on workflow patterns and they can be a guideline for ubiquitous process modeling.

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MEMS Design Flow Based on DFM Concept (DFM 개념을 적용한 MEMS design flow)

  • Han, Seung-Oh;Oh, Park-Kyoun;Silva, Mark da
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.8
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    • pp.1466-1470
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    • 2007
  • MEMS design flow based on DFM concept is presented and applied to gyroscope design as a test case. It is purposed to contribute to the yield improvement by considering the process-related parameters from the design phase. After defining the performance requirements, the sensitivity analysis should be done on the draft design(s) to find out the key parameters related with the device performance. By doing so, TEG can be designed for the selected process and/or material parameters. Through a set of test runs, the process capability is characterized and the material properties are extracted using the TEG. Then we can estimate the virtual yield of the current process for the designed device by running Monte Carlo analysis where the process and/or material property variations are considered. The estimated yield will make us redesign the device to be more robust or improve the current process to have the smaller variations.

Structural safety redundancy-based design method for structure with viscous dampers

  • Hao, Linfei;Zhang, Ruifu
    • Structural Engineering and Mechanics
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    • v.59 no.5
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    • pp.821-840
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    • 2016
  • A simple design process is proposed for supplemental viscous dampers based on structural safety redundancy. In this process, the safety redundancy of the primary structure without a damper is assessed by the capacity and response spectra. The required damping ratio that should be provided by the supplemental dampers is estimated by taking the structural safety redundancy as a design target. The arrangement of dampers is determined according to the drift distribution obtained by performing pushover analysis. A benchmark model is used to illustrate and verify the validity of this design process. The results show that the structural safety redundancy of the structure provided by the viscous dampers increases to approximately twice that of the structure without a damper and is close to the design target. Compared with the existing design methods, the proposed process can estimate the elastic-plastic response of a structure more easily by using static calculation, and determine the required damping ratio more directly without iterative calculation or graphical process. It can be concluded that the proposed process is simple and effective.

Optimal Process Design in Non-Steady Metal Forming by the Design Sensitivity (설계민감도를 이용한 비정상상태 소성가공공정 최적 설계)

  • 정석환;황상무
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1997.03a
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    • pp.113-118
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    • 1997
  • A new approach to process optimal design in non-isothermal, non-steady state metal forming is presented. In this approach, the optimal design problem is formulated on the basis of the integrated thermo-mechanical finite element process model so as to cover a wide range of the objective functions and design variables, and the derivative based approach is adopted for conducting optimization by design iteration. The process model, the formulation for process optimal design, and the procedures for the evaluation of the design sensitivity and for design iteration for optimization are described.

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A Web-based Workflow Management System for Design Processes (설계 프로세스 관리를 위한 웹 기반 워크플로우 시스템)

  • 김영호;주경준;김동수;강석호
    • Korean Journal of Computational Design and Engineering
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    • v.5 no.1
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    • pp.61-70
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    • 2000
  • The design and development of a Web-based Workflow Management System (WfMS) is described in this paper. WfMSs are employed by many organizations to manage their business processes efficiently. The goal of this research is to provide an effective management of design processes in a distributed and heterogeneous environment-an environment in which workflow participants are geographically dispersed and use different computing platforms. We identify the requirements of WfMSs for the distributed and heterogeneous environment. We present an approach to applying the Web technology to was. The developed system is composed of three main modules: Worflow Engine, Web-based clients, and Process Designer. The workflow engine is implemented in pure Java for portability to heterogeneous platforms. furthermore, the client interfaces are all programmed using applets, and thus they can be readily accessed through the Internet/intranet. The Process Designer provides a build-time function of generating process specifications. Some important functions of the developed system are explained in this paper. A prototype system has been developed and applied to design processes. The system allows effective cooperation among designers who may be geographically separated.

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Comparing User Experience-based Design and Minimalism (사용자 경험 디자인과 미니멀리즘 비교)

  • Jo, Dong-Hee;Lim, Byung-Woo;Cho, Yong-Jae
    • The Journal of the Korea Contents Association
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    • v.8 no.5
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    • pp.145-154
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    • 2008
  • Minimalism, which started with the subtle distinction between the end of modernism and beginning of post-modernism, was not limited to the fine arts but also spread through architecture, fashion, and the rest of the design industries. this historical study is considered a logical, user experience-based design process, the latest issue derived from the collision between minimalism and the digital environment is not limited to practical industrial design processes, but also their theoretical study. the results show that user experience-based design process and minimalism share many of the same qualities. based on these similarities, minimalism and user experience-based design process can be grouped together both academically and theoretically for establishing a future academic template for the digital designing process.

A Study on Business-Based Screen Design Techniques for Designing Efficient Applications

  • Kim, Tae-Woo;Park, Sun-Yi;Yeo, Jeong-Mo
    • Journal of Information Processing Systems
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    • v.14 no.6
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    • pp.1420-1430
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    • 2018
  • To build a successful information system, design and development should be carried out from the enterprise perspective. A complicated business is represented in various ways as technology advances, and many development methodologies have been studied from the viewpoint of technology and development. Each domain is independently designed and developed from the enterprise perspective, but there would be inclusive parts due to the integrated process wherein the definition, design, and development of business are carried out, and the design is done based on the designer's experience. This study would like to address the technique of designing screens based on the business process of the applications derived from the business. It designs the screens that appear when actual applications are completed, including how the data transfer process in the derived business process is represented and operated on the relevant screens. It designs the screen which is displayed when the actual application is completed and how the data transfer process in the derived business process is represented and operated on the relevant screen. In addition, it designs the DFD representing the overall flow of data for each business to represent the movement procedure between screens in general. Through the design method proposed in this study, the client's requirement could be confirmed to reduce the cost for redevelopment, the problem of communication between designers and developers with various experiences could be reduced, and an efficient design procedure could be provided to persons who lack design experience.