著者

Keita MITOMI Mayu AKAKI Nobuyuki KOBAYASHI Kenichi TAKANO

出版者

Japanese Society for the Science of Design

雑誌

Journal of the Science of Design (ISSN:24242217)

巻号頁・発行日

vol.5, no.2, pp.2_91-2_100, 2021-11-30 (Released:2021-12-09)

参考文献数

22

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In order to encourage the understanding of values and wide use of prototyping (PT), there are previous studies which indicate the classification of PT. While PT is essential to the development of products and solutions, novice designers can only select PT from a narrow understanding and recognition of it. Therefore, it is difficult for them to decide which kind of PT to create and they might select an ineffective one.In this paper, we divided the 74 implemented PT into groups according to the novice designer's depth of understanding of values that derived solutions have. PTs were implemented by novice designers at an example project, such as the Design Project (D-Pro) at a graduate school. Based on a review of submitted materials and interviews, implemented PTs were divided into three groups, namely "Exploratory PT", "Externalize PT", and "Needs Confirmatory PT". Through interviews with novice designers, we indicate that the proposed classification supports them to select an effective PT.In addition, by comparing the result of the performed PT when the classification is exhibited to the novice designers or not, we indicate that the ratio of PT in the earlier phase increases, and the average number of total PT slightly increases by exhibiting the classification.

著者

Tomoyuki Kawamura Kenichi Takano

出版者

一般社団法人 情報処理学会

雑誌

Journal of Information Processing (ISSN:18826652)

巻号頁・発行日

vol.22, no.4, pp.689-700, 2014 (Released:2014-10-15)

参考文献数

58

被引用文献数

1 3

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Researchers have found that about 70% of information systems (IS) development projects in Japan have failed, thus increasing the demand for solutions that will increase expected project success rates. In this study, we seek to explore such a solution by identifying factors that affect the degree to which Japanese IS development projects succeed or fail. We accomplish this by using an Internet-based questionnaire and statistical analysis. The questionnaire, which was primarily comprised of questions related to CMMI, yielded responses from 650 project managers who work for Japanese IT vendors. Multivariate analyses and structure equation modeling techniques demonstrated that seven factors, “Ordering Company's Skill and Requirement, ” “Project Planning, ” “Detailed Planning and Product Quality in Each Phase, ” “Project Monitoring and Control, ” “Change Requirement Management, ” “Skill and Teamwork of Project Members, ” and “Schedule Progress in Each Phase” influence project performance. Results also showed that these factors covary.