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研究生: 衛萬里
Wan-li Wei
論文名稱: 應用分析網路程序法選擇最佳產品設計方案之決策分析模式
An Application of ANP-based Decision Analysis Models for Selecting Optimal Product Design Solution
指導教授: 張文智
Wen-chih Chang
口試委員: 蕭世文
Shih-wen Hsiao
莊明振
Ming-chuen Chuang
陳玲鈴
Lin-lin Chen
陳建雄
Chien-hsiung Chen
學位類別: 博士
Doctor
系所名稱: 設計學院 - 設計系
Department of Design
論文出版年: 2007
畢業學年度: 95
語文別: 中文
論文頁數: 189
中文關鍵詞: 分析網路程序法模糊德爾菲產品設計決策分析模式0-1目標規劃新產品開發
外文關鍵詞: analytic network process, fuzzy Delphi method, product design decision analysis model, zero-one goal programming, new product development
相關次數: 點閱:1095下載:70
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  • 創新產品讓企業具競爭力並持續成長。前端程序(產品規劃與概念發展)則是新產品開發過程中直接影響未來產品上市成功與否的重要關鍵。因此,針對目標市場需求所構思發想的設計替選方案,是亟需一套整合產品形式、功能、特性、規格及經濟效益評估等之決策分析模式,以期達到產品設計最佳化且提昇開發效益之預期目標。
    決策和選擇最佳產品設計方案首重於如何確立評估準則;而準則間是否存在相互依存性,亦需審慎考量。其次,對於新產品開發所需投入的人力、物力資源能否合理有效分配,更應納入決策最終方案之一部份。本研究依企業不同新產品開發策略和執行效益的需求,分別採用模糊德爾菲(FDM)專家問卷及SMART*2(規劃構面SMART × 設計構面SMART)結合分析網路程序法(ANP)進行新產品設計替選方案的權重排序;再將所得之權值導入0-1目標規劃(ZOGP)式中,於最佳資源分配的規劃和限制下,求取最佳解答(optimal solution)。其中,模糊德爾菲評價模式是經由學者專家群篩選評估準則,適用於界定不明確評估因子的決策分析個案;而同步SMART*2雙向ANP分析模式之評估準則,則透過文獻回顧與探討彙整得之,可因應大多數為求決策效率的新產品開發與設計案例。
    本論文以MP3隨身聽及孕育體驗母子機兩個實務設計案例,分別驗證上述兩決策分析模式之可行性:前者所選出之最佳產品設計方案為C與D;後者則為方案A與方案C。是故,此選擇最佳產品設計方案之整合型決策分析模式,不僅有助於提昇企業決策品質,避免因錯誤決策造成公司組織莫大損失;同時,也提供產業界一套可資遵循的新產品開發評價機制。


    In today's competitive global marketplace, new product development (NPD) ensures the continual success and growth of corporations. The front-end process, including product planning and concept development phases, is especially critical to project success since it precedes the system-level design phase and launch of the actual product development process (PDP). Thus, an integrated decision analysis model to evaluate and select optimum product design solutions is a crucial component for an enterprise.
    In this study, two effectively developed decision analysis models based on the analytic network process (ANP) to help companies that need to evaluate and select an optimum product design solution from proposed design alternatives. In addition to considering the interdependencies and feedbacks among evaluation criteria and candidate alternatives, FDM/ANP/ZOGP model and concurrent SMART*2/ZOGP model also need to examine a company’s corporate strategy, implementation time, and resources allocation. Especially, which model should be applied in accordance with those evaluation criteria considered-whether they are ambiguous or crisp (if those criteria have been identified in advance). The fuzzy Delphi method is adopted first in FDM/ANP/ZOGP model to screen essential factors that have influences on the selection results; however, in the novel SMART*2/ZOGP model, we have chosen five crucial evaluation criteria for both aspects of planning and design, respectively (SMART×SMART). With the applications of these above models, an enterprise could benefit from it by avoiding flawed decisions.
    Two empirical new product development design cases (an MP3 player and a pregnant-infant communication kit) were presented to illustrate the overall decision analysis procedure and to examine the effectiveness of these proposed new models.

    論文摘要 Ⅰ 英文摘要 Ⅱ 誌 謝 Ⅲ 目 錄 Ⅳ 表 目 錄 Ⅶ 圖 目 錄 Ⅸ 第一章 緒論 1 1.1 研究背景與動機 1 1.2 研究目的 6 1.3 研究範圍與前提 6 1.4 研究流程 7 1.5 論文結構 7 第二章 文獻探討 10 2.1 產品設計與開發 10 2.1.1 新產品開發(New Product Development) 10 2.1.2 產品開發程序與組織 11 2.2 決策分析(Decision Analysis) 14 2.2.1 方案評估與選擇問題 14 2.2.2 決策分析方法與應用 16 2.2.3 產品設計評價與決策 18 2.3 模糊理論(Fuzzy Set) 20 2.3.1 模糊數(Fuzzy Number) 20 2.3.2 模糊數基本運算法則 22 2.3.3 α-截集(α- cut) 22 2.3.4 解模糊化(Defuzzification) 23 2.4 德爾菲法(Delphi Method) 24 2.4.1 意義與特性 24 2.4.2 類型與實施步驟 25 2.5 模糊德爾菲法 28 2.5.1 Ishikawa等人(1993)模糊德爾菲法 30 2.5.1.1 Max-min法 30 2.5.1.2 Fuzzy Integration法 30 2.5.2 Chang等人(1995)模糊德爾菲法 32 2.5.3 陳昭宏(2001)模糊德爾菲法 33 2.6 分析程序法 35 2.6.1 分析層級程序法(Analytic Hierarchy Process) 36 2.6.2 分析網路程序法(Analytic Network Process) 40 2.6.3 比較AHP法與ANP法之差異 41 2.7 目標規劃法 43 2.7.1 多目標決策(MCDM / MADM / MODM) 43 2.7.2 0-1目標規劃法(Zero-one Goal Programming) 44 第三章 建構決策分析模式之研究設計 46 3.1 FDM / ANP / ZOGP決策分析模式 47 3.1.1 模式應用說明 47 3.1.2 模式架構與研究方法 47 3.1.3 實施流程與執行步驟 54 3.2 同步SMART2雙向ANP決策分析模式 57 3.2.1 模式應用說明 57 3.2.2 模式架構與研究方法 58 3.2.3 實施流程與執行步驟 64 第四章 實例驗證與結果分析 68 4.1 案例一:應用FDM / ANP / ZOGP決策分析模式 68 4.1.1 案例背景說明 68 4.1.2 模糊德爾菲專家問卷篩選評估準則 69 4.1.3 分析網路程序演算設計方案權值 74 4.1.4 0-1目標規劃求取最佳解 89 4.1.4.1 目標與決策變數 89 4.1.4.2 限制式之設定 91 4.1.4.3 運算結果及分析 92 4.1.5 分析與討論 93 4.2 案例二:應用同步SMART2雙向ANP決策分析模式 96 4.2.1 案例背景說明 96 4.2.2 確立SMART2評估準則內部相依性 97 4.2.3 雙向ANP同步評估設計方案權值 98 4.2.4 敏感度分析與決策模擬 112 4.2.5 0-1目標規劃求取最佳解 113 4.2.5.1 目標與決策變數 114 4.2.5.2 限制式之設定 115 4.2.5.3 運算結果及分析 117 4.2.6 分析與討論 117 第五章 結論與建議 119 5.1 結論 119 5.2 研究貢獻 120 5.3 後續研究建議 121 參考文獻 123 附錄 135

    [中文部份]
    王秋惠,1988,公車路網設計方法之研究與電腦查詢系統之建立,國立交通大學運輸研究所,碩士論文,新竹。
    王欽輝等編譯,1992,FUZZY工學,全華科技圖書公司,台北。
    王慶富,1999,專案管理,聯經出版事業公司,台北。
    余振銘,2000,提升國內營造業競爭力關鍵性因子之研究,國立成功大學建築研究所,碩士論文,台南。
    吳正添,1980,0-1整數目標規劃應用於公司計畫選定之研究,淡江大學管理科學系,碩士論文,台北。
    吳俊杰,2004,設計意識與設計服務,亞太圖書,台北。
    吳麗珍,1998,評估理論—文獻與回顧,警學叢刊,第二十八卷,第四期,pp.137-162。
    呂清夫,2003,造形原理,九版四刷,雄獅圖書,台北。
    宋文娟,2001,一種質量並重的研究法—德菲法在醫務管理學研究領域之應用,醫務管理期刊,第二卷,第二期,pp.11-20。
    李紹廷譯,2004,華頓商學院-決策聖經,商周,台北。
    周志榮,2004,創新設計程序在新產品開發之應用研究,國立成功大學工業設計研究所,博士論文。
    胥直強,1996,論建築生產的整體評估理論與應用,台北技術學院學報,第二十九卷,第二期,pp.281-296。
    胡佑宗譯,1996,工業設計:產品造形的歷史、理論及實務,亞太圖書,台北。
    徐村和,1998,模糊德爾菲層級分析法,模糊系統學刊,第四卷,pp. 59-72。
    翁振益等合著,2006,決策分析方法與應用,華泰文化,台北。
    高孔廉、張緯良,1993,作業研究,五南圖書出版社,台北。
    張文智、衛萬里,2006,新產品開發決策之同步SMART2評價模式,設計學報,第十一卷,第二期,pp. 21-41。
    張有恆,1998,運輸計畫評估與決策—模糊理論之探討與應用,華泰文化事業股份有限公司,台北。
    張志向,1997,應用模糊理論於中小企業信用評等表改善建立之研究,高雄工學院管理科學研究所,碩士論文。
    張建成譯,1998,產品設計與開發,六合出版社,台北。
    張家瑜譯,2005,設計管理,六合出版社,台北。
    張書文、戴華亭譯,2002,產品設計與開發,普林斯頓國際有限公司,台北。
    張得隆等編譯,1995,Fuzzy產品基礎與實例,全華科技圖書公司,台北。
    許士軍,1981,管理學,東華出版社,台北。
    許志義,2003,多目標決策,二版,五南圖書,台北。
    許言,2004,我國家電產業廠商因應加入WTO在產品設計方面之策略研究,國立台灣科技大學設計研究所,博士論文。
    陳昭宏,2001,亞太港埠競爭力與核心能力指標之研究,運輸學刊,第十三卷,第一期,pp.1-25。
    陳禹辰、歐陽崇榮,1988,決策支援與專家系統,全華科技,台北。
    陳虹遐,2004,應用分析網路程序法於液晶電視之生態效益評估,國立成功大學工業設計研究所,碩士論文。
    陳重亨譯,2005,決策一本通-聰明做決策的6大祕技,臉譜,台北。
    陳哲昌,2002,最適防災社區管理組織之研究—以山坡地社區為例,華梵大學工業管理研究所,碩士論文,台北。
    曾喬彬等,1980,工業設計叢書,明志叢書出版社,泰山。
    曾懷恩、李榮貴,1998,以AHP模式作為評估設計案的決策方法,設計學報,第三卷,第一期,pp. 43-54。
    馮正民、江俊良,1988,計畫評估方法之評述,規劃學報,第十五期,pp.67-86。
    黃雪晴,2000,國內資訊電子業聯盟夥伴選擇模式之研究,國立成功大學工業管理研究所,碩士論文,台南。
    葉思迪譯,2005,關鍵決策-中斷摧毀企業的連鎖錯誤,培生集團,台北。
    詹中原,1999,新公共管理—政府再造的理論與實務,五南圖書,台北。
    劉以琳,2005,產品多樣化設計方法之研究,國立成功大學工業設計研究所,博士論文,台南。
    劉寅龍、刁勇、馮桂楣譯,2005,決策之難-避開三種錯誤及七項誘因的決策陷阱,良品文化館,台北。
    潘淑滿,2003,質性研究:理論與應用,心理出版社,台北。
    蔡子瑋,1994,產品意象語言研究—以本土意象為例,國立成功大學工業設計研究所,博士論文,台南。
    蔡宏政,2004,電腦輔助產品造形、色彩設計與客製化商務系統建構之研究,國立成功大學工業設計研究所,博士論文,台南。
    蔡佩真,2004,建設公司建築企劃方案選擇之研究-以住宅方案為例,碩士論文,朝陽科技大學,台中。
    衛萬里、張文智,2005,應用模糊德爾菲與分析網路程序法選擇最佳產品設計方案之研究,設計學報,第十卷,第三期,pp. 59-80。
    鄭滄濱,2001,軟體組織提升人員能力之成熟度模糊評估模式,碩士論文,國立台灣科技大學,台北。
    鄧成連,1999,設計管理:產品設計之組織、溝通與運作,亞太圖書,台北。
    鄧成連,2001,設計策略:產品設計之管理工具與競爭利器,亞太圖書,台北。
    鄧振源、曾國雄,1989,層級分析法(AHP)的內涵特性與應用,中國統計學報,第二十七卷,第七期,pp.1-20。
    謝臥龍,1997,優良國中教師特質之德懷分析,教育研究資訊,第五卷,第三期,pp.14-28。
    簡宇伶,1995,都市更新地區選定0-1整數目標規劃評估模式之研究,東海大學建築學系,碩士論文,台中。
    顏敏仁、羅維,2001,統包制度對營建業市場結構之影響—以台灣營建業市場為例,土木水利,第二十七卷,第四期,pp.37-56。
    譚玉燕編譯,2005,決策的盲點-透悉企業決策的九大盲點,九角文化,台北。

    [英文部份]
    Baxter, M., 1995. Product Design: A practical guide to systematic methods of new product development. Chapman & Hall, U.K.
    Booz, Allen and Hamilton, 1982. New product management for the 1980s. Booz-Allen and Hamilton, Inc., New York.
    Breemen, J. and Slamet, S., 1999. The Role of Shape in Communicating Designers’ Aesthetic Intents. Proceeding of the 1999 ASME Design Engineering Technical Conferences, Las Vegas, Nevada.
    Bullinger, H.J., Lentes, H.P. and Scholtz, O.H., 2000. Challenges and chances for innovative companies in a global information society. International Journal of Production Research 38(7), pp.1469-1500.
    Buss, M.D., 1983. How to rank computer projects. Harvard Business Review 61(1), pp.118-125.
    Chang, P.T., Huang, L.C. and Lin, H.J., 1995. An efficient approach for large scale project planning based on fuzzy Delphi method, Fuzzy Sets and System 76, pp. 277-288.
    Chang, W., 1999. Product Design Strategy. Seminar on Product Development and Design Organized by Asian Productivity Organization, Taipei.
    Charnes, A. and Cooper, W.W., 1957. Management models and industrial applications of linear programming. Management Science 4(1), pp.81-87.
    Chaturvedi, K.J. and Rajan, Y.S., 2000. New product development: challenges of globalization. International Journal of Technology Management 19, pp.788-805.
    Chen, Kuohsiang and Owen, C.L., 1997. Form language and style description. Design Studies 18, No.3, pp.249-274.
    Chung, S.H., Lee, H.I. and Pearn, W.L., 2005. Production Mix Optimization for Semiconductor Manufacturing Based on AHP and ANP Analysis. The International Journal of Advanced Manufacturing Technology 25, pp.1144-1156.
    Cooper, R. G., Edgett, S. J. and Kleinschmidt, E. J., 1998. Portfolio Management for New Products. Perseus Books, New York.
    Cooper, R.G., 1983. A Process Model for Industrial New Product Development. IEEE Transactions, EM-30, 1, pp.2-11.
    Cooper, R.G., 1993. Winning at New Products. Addison Wesley Publishing Co., Boston.
    Cooper, R.G., 1998. Product leadership: Creating and launching superior new products. Perseus Books, New York.
    Cooper, W.W., Charnes, A. and Ferguson, R.O., 1955. Optimal estimation of executive compensation by linear programming. Management Science 1(2), pp.138-151.
    Crawford, C.M., 1994. New Products Management. 4th Editions, Irwin.
    Crozier, C., 1994. Manufactured Pleasures: Psychological Responses to Design. Manchester University Press, Manchester, UK.
    Czajkowski, A.F., Jones, S., 1986. Selecting interrelated R&D projects in space technology planning, IEEE Transactions on Engineering Management 33(1), pp.17-24.
    Dalkey, N.C., 1969. The Delphi method: an experimental study of group opinion. The RAND Corporation, Research Paper RM-5888-PR.
    Dantzig, G.B., 1958. On integer and partial linear programming problems. The RAND Corporation Paper, P-1410.
    Duffield, C., 1988. The Delphi Technique, The Australian Journal of Advanced Nursing 6(2), pp. 41-45.
    Erdogmus, S., Aras, H. and Koc, E., 2006. Evaluation of alternative fuels for residential heating in Turkey using analytic network process (ANP) with group decision-making. Renewable and Sustainable Energy Reviews 10, pp.269-279.
    Ghodsypour, S.H. and O’Brien, C., 1998. A decision support system for supplier selection using an integrated analytic hierarchy process and linear programming. International Journal of Production Economics 56-57, pp.199-212.
    Gidel, T., Gautier R. and Duchamp, R., 2005. Decision-making framework methodology: an original approach to project risk management in new product design. Journal of Engineering Design 16(1), pp.1-23.
    Hartman, A., 1981. Reaching Consensus Using the Delphi Technique. Education Leadership 38, pp.495-97.
    Hayes, R.H., Wheelwright, S.C. and Clark, K.B., 1988. Dynamic Manufacturing: Creating the Learning Organization. The Free Press, New York.
    Helmer, O. H., 1966. The Delphi Method for Systematizing Judgments about the Future. Institute of Government and Public Affairs, University of California.
    Hollins, B. and Pugh, S., 1990. Successful Product Design. Butterworth & Co., London.
    Hsiao, S.W. and Chou, J.R., 2004. A creativity-based design process for innovative product design. International Journal of Industrial Ergonomics 34, pp.421-443.
    Hsiao, S.W., 1998. Fuzzy logic based decision model for product design. International Journal of Industrial Ergonomics 21, pp.103-116.
    Hsiao, S.W., 2002. Concurrent design method for developing a new product. International Journal of Industrial Ergonomics 29, pp.41-55.
    Huang, J.J., Tzeng, G.H. and Ong C.S., 2005. Multidimensional data in multidimensional scaling using the analytic network process. Pattern Recognition Letters 26, pp.755-767.
    Hwang, C.L. and Lin, M.L., 1987. Group Decision Making Under Multiple Criteria Method & Application, Springer-Verlag, Reading, Berlin Heidelberg.
    Ishikawa, A., Amagasa, T., Tamizawa, G., Totsuta, R. and Mieno, H., 1993. The Max-Min Delphi Method and Fuzzy Delphi Method Via Fuzzy Integration. Fuzzy Sets and Systems 55, pp.241-253.
    Jharkharia, S. and Shankar, R., 2007. Selection of logistics service provider: An analytic network process (ANP) approach. Omega 35, pp.274-289.
    Kahneman, D. and Tversky, A., 2000. Choices, Values and Frames. Cambridge University Press, Cambridge.
    Kahraman, C., Ertay, T. and Buyukozkan, G., 2006. A fuzzy optimization model for QFD planning process using analytic network approach. European Journal of Operational Research 171, pp.390-411.
    Karsak, E.E., Sozer, S. and Alptekin, S.E., 2002. Product planning in quality function deployment using a combined ANP and GP approach. Computer & Industrial Engineering 44, pp.171-190.
    Klir, G.J. and Yuan, B., 1995. Fuzzy sets and fuzzy logic: theory and applications. Prentice Hall PTR, New Jersey.
    Koopmans, T.C., 1951. Analysis of production as an efficient combination of activities. Activity Analysis of Production and Allocation. Cowles Commission Monograph 13, pp.33-97, Wiley, New York.
    Kreng, V.B. and Lee, T.P., 2004. QFD-based modular product design with linear integer programming – a case study. Journal of Engineering Design 15(3), pp.261-284.
    Kusar, J., Duhovnik, J., Grum, J. and Starbek, M., 2004. How to reduce new product development time. Robotics and Computer-Integrated Manufacturing 20, pp.1-15.
    Laarhoven, P.J.M. and Pedrycz, W., 1983. A fuzzy extension of Satty’s priority theory, Fuzzy Sets and System 11, pp. 229-241.
    Lee, J.W. and Kim, S.H., 2000. Using ANP and GP for interdependent information system project selection. Computers & Operations Research 27, pp.367-382.
    Linstone, H.A. and Turoff, M., 1979. The Delphi Method:Techniques and Applications. Addison-Wesley Publishing Company, MA.
    Liu, Elim and Hsiao, S.W., 2006. ANP-GP approach for product variety design. The International Journal of Advanced Manufacturing Technology 29, pp.216-225.
    Ljungberg, L.Y. and Edwards, K.L., 2003. Design, materials selection and marketing of successful products. Materials & Design 24, pp.519-529.
    Lucas, H.C., Moor, J.R. J.r., 1976. A multiple-criterion scoring approach to information system project selection. Infor 14 (1), pp.1-12.
    Meade, L.M. and Presley, A., 2002. R&D project selection using the analytic network process. IEEE Transactions on Engineering Management 49(1), 59-66.
    Miles, R.E., and Snow, C.C., 1978. Organizational Strategy, Structure, and Process. McCraw-Hill, New York.
    Murray, T.J., Pipino, L.L. and Gigch, J.P. van, 1985. A pilot study of fuzzy set modification of Delphi. Human Systems Management 5, pp.76-80.
    Partovi, F.Y., 2006. An analytic model for locating facilities strategically. Omega 34, pp.41-55.
    Pugh, S., 1991. Total Design, Integrated Methods for Successful Product Engineering. Addison-Wesley Publishing Co. Inc., Massachusetts.
    Pullman, M.E., Moore, W.L. and Wardell, D.G., 2002. A comparison of quality function deployment and conjoint analysis in new product design. The Journal of Product Innovation Management 19, pp.354-364.
    Reza, K., Hossein, A. and Yvon, G., 1988. An integrated approach to project evalution and selection. IEEE Transactions on Engineering Management 35 (4), pp.265-270.
    Ringuest, J.L. and Graves, S.B., 1989. The linear multi-objective R&D project selection problem. IEEE Transactions on Engineering Management 36(1), pp.54-57.
    Roper-Low, G.C. and Sharp, J.A., 1990. A decision model for interdependent information system project selection. Journal of the Operational Research Society 41, pp.49-59.
    Saaty, T.L. and Takizawa, M., 1986. Dependence and independence: from linear hierarchies to nonlinear networks. European Journal of Operational Research 26, pp.229-237.
    Saaty, T.L., 1980. The analytic hierarchy process, McGraw-Hill, New York.
    Saaty, T.L., 1996. The analytic network process. RWS Publications, Expert Choice, Inc., Pittsburgh.
    Saaty, T.L., Vargas, L.G. & Dellmann, K., 2003. The allocation of intangible resources: the AHP and LP. Socio-Economic Planning Sciences 37, pp.169-184.
    Sanathanam, R. and Kyparisis, G.J., 1996. Using ANP and GP for interdependent information system project selection. European Journal of Operational Research 89, pp.380-399.
    Santhanam, R., Muralidhar, K. & Schniederjans, M., 1989. A zero-one goal programming approach for information system project selection, Omega 17 (6), pp.583-593.
    Simon, H.A., 1976. Administrative Behavior: A Study of Decision-making Process in Administrative Organization. The Free Press, Inc., New York.
    Swink, M.L., 1998. A tutorial on implementing concurrent engineering in new product development programs. Journal of Operations Management 16, pp.103-116.
    Ulrich, K.T. and Eppinger, S.D., 2003. Product Design and Development. McGraw-Hill, Inc., New York.
    Wallace, D.D., 1991. A computer model of aesthetic product design. Master thesis of Science in mechanical engineering at the MIT, pp.42-44.
    Weber, R., Werners, B. and Zimmerman, H.J., 1990. Planning models for research and development. European Journal of Operational Research 48, pp.175-188.
    Wheelwright, S.C. and Clark, K.B., 1992. Revolutionizing Product Development: Quantum Leaps in Speed, Efficiency, and Quality. The Free Press, New York.
    Wolfslehner, B., Vacik, H. and Lexer, M.J., 2005. Application of the analytic network process in multi-criteria analysis of sustainable forest management. Forest Ecology and Management 207, pp.157-170.
    Wu, W.W. and Lee, Y.T., 2007. Selecting knowledge management strategies by using the analytic network process. Expert Systems with Applications 32, pp.841-847.
    Zadeh, L.A., 1965. Fuzzy sets. Information and Control 8, pp.338-353.
    Zadeh, L.A., 1975. The concept of a linguistic variable and its application to approximate reasoning. Information Science, Part 1:8, pp.199-251; Part 2:8, pp.301-357; Part 3:9, pp.43-80.
    Zie-Av, A. and Reich, Y., 2005. SOS-subjective objective system for generating optimal product concepts. Design Studies 26, pp.509-533.

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