• Title/Summary/Keyword: Design Validity Evaluation

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A Technology-based New Business Planning Model ; Fuzzy Inference Systems Approach (신규사업의 성공판정을 위한 퍼지추론모형)

  • 권철신;김태현
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2001.10a
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    • pp.246-249
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    • 2001
  • In this study we propose a technology selection model, which captures technology seeds for new business area by a fuzzy structural modeling method and then, design a model, which evaluates the validity of New Business Development plans for the selected technology seeds with regard to the properties of manufacturing, product, market, and economy as well. Finally, a fuzzy inference system is designed in order to decide the degree of success of New Business Development plans based on the preceding validity evaluation.

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Optimal Shape Design of Container in HIPing Process by the Finite Element Method (유한요소법을 이용한 HIPing 공정에서의 컨테이너 형상 최적설계)

  • 전경달
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1999.03b
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    • pp.257-260
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    • 1999
  • It is very important to design the shape of container in HIPing process since the final shape and relative density distribution of the product are decisively dependent on the shape of container. A derivative based approach to determine the shape of container in HIPing process is presented. In this approach the optimal design problem is formulated on the basis of the finite element process. The process model the formulation for process optimal design and the schemes for the evaluation of the design sensitivity and an iterative procedure for optimization are described. In comparison with finite difference scheme the validity of the schemes for the evaluation of the design sensitivity is examined.

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A Study on the Simplified Economics Evaluation Method for Selecting a Heat Source System at the Pre-design Phase (초기계획단계에서 열원시스템 선정을 위한 경제성 간이 평가법에 관한 연구)

  • Park Yool;Park Jong-Il
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.16 no.11
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    • pp.1060-1067
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    • 2004
  • To apply an analysis method of life cycle cost when assessing economics of equipment system, we should basically set up preconditions such as useful life, price escalation rate, interest rate, etc. as well as consider a calculation algorism of source energy and heat source system, which is a complex process for life cycle costing. For this reason, equipment designers tend to plan heat source systems, without a thorough investigation on economics of alternative systems at the pre-design phase. In this process, architectural designers should adopt a proper heat source system, which is one of the most important factors for planning an appropriate architectural design, through a discussion with equipment designers in a short time. In order to offer an evaluation method for equipment designers to analyze economics of an alternative heat source system easily at the pre-design phase, this research would define the simplified economics, evaluation method through analysis of existing papers for economics evaluation, and examine validity through comparison of simplified method values ($LCC_{EC}$) and life cycle costing values ($LCC_{15}$) for six alternative heat source systems.

A Study on the Layout Design of Ocean Space Submergible Boat by the Simulated Annealing Method (시뮬레이티드 어닐링법을 이용한 해저 탐사용 잠수정의 배치설계에 관한 연구)

  • Jang, Seung-Ho;Choi, Myung-Jin
    • Journal of the Korean Society for Precision Engineering
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    • v.18 no.6
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    • pp.50-58
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    • 2001
  • In this paper, a method to apply the simulated annealing method to three dimensional layout design problem which has multiple constraint conditions and evaluation criteria, was suggested. A program to support three dimensional layout design was developed according to the suggested method. This program was applied to the layout design of the wireless unmaned ocean space submergible boat. The layout result was improved 19.0% for the result of layout design expert. By this, it was verified that the suggested method has validity in supporting three dimensional layout design problem.

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Evaluation of Dapped Beam Design Methods using Strut-Tie Models (스트럿-타이 모델에 의한 턱이진 보 설계방법의 평가)

  • 윤영묵;최명석
    • Proceedings of the Korea Concrete Institute Conference
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    • 2000.10a
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    • pp.235-240
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    • 2000
  • Although dapped-end beams are widely used in bridge and building structures, there are not any specific and reasonable design regulations on dapped-end beams. In this study, the validity of the suggested experimental and empirical design methods, conventional strut-tie model approach, and nonlinear strut-tie model approach is evaluated through the analysis of dapped-end beams tested to failure. The nonlinear strut-tie model approach proved to be the most suitable method for dapper-end beam design.

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Reliability and Validity of the Clinical Judgment Rubric on Simulation Practice with a Post-operative Rehabilitation Case (수술 후 재활 사례에 적용한 임상 판단력 평가도구의 신뢰도 및 타당도)

  • Oh, Hye Kyung
    • The Korean Journal of Rehabilitation Nursing
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    • v.18 no.2
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    • pp.145-152
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    • 2015
  • Purpose: The purpose of this study was to evaluate the reliability and validity of the clinical judgement rubric on simulation practice with a post-operative rehabilitation case. Methods: Methodological study design was used to evaluate the reliability and validity of the clinical judgement rubric on simulation practice. The participants were 35 students in a college of nursing. Results: There were showed reliability and validity of the clinical judgement rubric on simulation practice with a post-operative rehabilitation case. In terms of internal consistency, the Cronbach's ${\alpha}$ for all columns was .821. Factor analysis showed that planning, intervention and evaluation domains with Eigen values of 69.87% were bound, unlike the original tool where four factors including noticing, interpretation, responding and reflecting domains were bound. Convergent validity was established by the correlation between the total clinical judgement score and critical thinking disposition before and after simulation practice. Discriminative validity was established by the correlation between the total clinical judgement score and simulation effectiveness score. Conclusion: The findings of this study suggested that clinical judgement rubric on simulation practice is reliable. Repeated studies are needed to objectively evaluate the clinical judgement rubric of simulation practice for applying various clinical situations.

Template Restructuring of Backward design for Home Economics Instruction (가정교과 수업 적용을 위한 백워드 디자인의 템플릿 재구조화)

  • Wang, Seok-Soon
    • Journal of Korean Home Economics Education Association
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    • v.30 no.2
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    • pp.117-136
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    • 2018
  • The purpose of this study is restructuring the template to apply the 'Backward design' for Home Economics Instruction. This study reviewed the theory of Wiggins and McTighe, the advocates of backward design, and examined the template for version 2.0 of Wiggins and McTighe (2011). In addition, This study analyzed various previous researches using backward design, and drew implications for template restructuring for applying backward design on Home Economics Instruction. In addition, the validity of the template was verified through facial validity through the expert council. Through this process, the final 5 stages (1. Curriculum Analysis → 2. Instructional Design (Learning Experience Design ↔ Evaluation Design (Performance Task Planning) → 3. Instruction Flow → 4. Class guide for each class → 5. Evaluation record, and feedback)suggested templates for applying backward design. Future research will use the restructured assumptions and templates to develop teaching materials in the Home Economics areas of the 2015 revised curriculum. In future research, field research should be carried out on how the Home Economics instruction with backward design affects learners.

Fair Assessment Method Reflecting Individual Ability in Capstone Design Course (캡스톤 디자인 수업에서 개인 능력을 반영하는 공정한 평가 방법)

  • Kim, Jongwan
    • Journal of Engineering Education Research
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    • v.22 no.2
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    • pp.36-45
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    • 2019
  • Capstone design is a subject taught in a setting where students gather in a team, decide on their own selected topic, and collaborate with one another to perform a project. A fair assessment is very important in a team project-based capstone design course for students. Many instructors agree that harmonizing creative evaluation and outcome assessment is hard in capstone design class. In also, it is not easy to assess students' individual efforts and achievements fairly in accordance with team-based assessment practices. To resolve this issue in this paper, we have surveyed various engineering design education methodologies, and have modelled existing evaluating elements into a modified creative process and outcome assessment framework for team project assessment. In particular, we focused on a method of fairly assigning credits by combining team based and individual-level assessments. Analyzing students' achievement and grade evaluation and verifying the validity of the proposed method was performed.

An Investigation of a Sensibility Evaluation Method Using Big Data in the Field of Design -Focusing on Hanbok Related Design Factors, Sensibility Responses, and Evaluation Terms- (디자인 분야에서 빅데이터를 활용한 감성평가방법 모색 -한복 연관 디자인 요소, 감성적 반응, 평가어휘를 중심으로-)

  • An, Hyosun;Lee, Inseong
    • Journal of the Korean Society of Clothing and Textiles
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    • v.40 no.6
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    • pp.1034-1044
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    • 2016
  • This study seeks a method to objectively evaluate sensibility based on Big Data in the field of design. In order to do so, this study examined the sensibility responses on design factors for the public through a network analysis of texts displayed in social media. 'Hanbok', a formal clothing that represents Korea, was selected as the subject for the research methodology. We then collected 47,677 keywords related to Hanbok from 12,000 posts on Naver blogs from January $1^{st}$ to December $31^{st}$ 2015 and that analyzed using social matrix (a Big Data analysis software) rather than using previous survey methods. We also derived 56 key-words related to design elements and sensibility responses of Hanbok. Centrality analysis and CONCOR analysis were conducted using Ucinet6. The visualization of the network text analysis allowed the categorization of the main design factors of Hanbok with evaluation terms that mean positive, negative, and neutral sensibility responses. We also derived key evaluation factors for Hanbok as fitting, rationality, trend, and uniqueness. The evaluation terms extracted based on natural language processing technologies of atypical data have validity as a scale for evaluation and are expected to be suitable for utilization in an index for sensibility evaluation that supplements the limits of previous surveys and statistical analysis methods. The network text analysis method used in this study provides new guidelines for the use of Big Data involving sensibility evaluation methods in the field of design.

Development of a Customer Orientation Scale for Clothing Salespeople (의류판매원의 고객지향성 측정도구 개발)

  • Han, Sang-In;Hwang, Sun-Jin
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.2
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    • pp.152-164
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    • 2012
  • This study develops a valid and reliable scale to evaluate customer orientation for clothing salespeople in order to provide a foundation for systematic and empirical research in the apparel industry. The study was conducted in two phases. First, a scale was developed to evaluate the customer orientation of clothing salespeople through a qualitative method. The second phase involved the verification of the validity of the developed evaluation questions through a quantitative method. The subjects of this study were 327 clothing salespeople, and the results were analyzed using AMOS 7.0 and SPSS 15.0. The results were as follows: First, customer orientation questions were elicited from in-depth interviews with fashion sales-people, analyses of fashion magazine articles, and previous studies. From the results, 38 preliminary questions were selected based on categorization, modification, and expert analyses of the content validity. Second, in order to verify the validity of the customer orientation scale that consisted of 24 questions in 7 factors, we performed a verification of the convergent validity through an assessment of the magnitude of standardization factor loading, average variance extracted (AVE), and construct reliability. Discriminant validity was verified using the AVE of each of the two constructs and a comparison of the square of the correlation between the constructs. According to the results, the measured values were above or near the guideline values that demonstrates the validity of the customer orientation scale.