• Smart Media Journal
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• v.11 no.7
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• pp.19-27
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• 2022

The artificial intelligence software market is expected to grow sixfold from 2020 to 2025. However, the software development process is not standardized and there is no standard for calculating the cost. Accordingly, each AI software development company calculates the input man-hours according to their respective development procedures and presents this as the basis for the development cost. In this study, the development stage of "artificial intelligence-based software" that learns with a large amount of data and derives and applies an algorithm was defined, and the required labor was collected by conducting a survey on the number of man-hours required for each development stage targeting developers. Correlation analysis and regression analysis were performed between the collected man-hours for each development stage, and a model for predicting the man-hours for each development stage was derived. As a result of testing the model, it showed an accuracy of 92% compared to the collected airborne effort. The man-hour prediction model proposed in this study is expected to be a tool that can be used simply for estimating man-hours and costs.

• Information Systems Review
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• v.23 no.1
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• pp.135-154
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• 2021

In the network economy, the informatization of Small and Medium enterprises(SME) plays an important role in determining productivity while being competitive in the businesses. Informatization of SME has become important along with the recent trend of the fourth industrial revolution. Based on the IT Business Value Model, this study analyzes the key factors of information service of SME with the structure model. In addition, multi-level model was conducted by dividing the layers according to the size of the SME. The analysis confirmed that complementary organizational resources are a key factor in determining the informatization of SME. In addition, the effect of informatization of SME on the scale of SME varies depending on the type of entry into the industrial complex.

• Journal of The Korean Association For Science Education
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• v.33 no.5
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• pp.1055-1086
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• 2013

The purpose of this study is to identify the formation and evolution patterns of a trading zone and to explore the difficulties teachers experience in the trading zone and their perceptions of the experience. Seven teachers involved in the 'STEAM Teacher Community' in a middle school located in the southern part of South Korea participated in this study. Participant observation and in-depth interviews were carried out, and reflective essays were collected for analysis. The results show that teachers successfully formed a trading zone to share their expertise when they developed teaching materials for the convergence of different subject matters. Moreover, such a trading zone evolved in the order of pre-trading zone, trading zone under elite control, trading zone with boundary object, and trading zone of shared mental model. The difficulties teachers experienced in the trading zone were categorized under the difference of culture and opinion across subject matters, the lack of motivation for convergence, the hegemony of convergence and far-fetched factors for convergence, and difficulty of communication due to jargons. Also teachers in this study experienced perceptual changes in the trading zone. The trading zone model drawn from the results of this study bring forth implications for voluntary teachers' learning community activity for the convergence of different subject matters.

• Journal of Industrial Convergence
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• v.18 no.3
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• pp.19-25
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• 2020

In the software development process, software reliability evaluation is a very important issue. In particular, finding the optimal development model that satisfies high reliability is the more important task for software developers. For this, in this study, Pareto and Erlang life distributions were applied to the finite failure NHPP model to evaluate the reliability attributes. For this purpose, parametric estimation is applied to the maximum likelihood estimation method, and nonlinear equations are calculated using the bisection method. As a result, the Erlang model showed better performance than the Pareto model in the evaluation of the strength function and the mean value function. Also, as a result of inputting future mission time and evaluating reliability, the Erlang model showed an effectively high trend together with the Pareto model, while the Goel-Okumoto basic model showed a decreasing trend. In conclusion, the Erlang model is the best model among the proposed models. Through this study, it is expected that software developers will be able to use it as a basic guideline for exploring and evaluating the optimal software reliability model.

• Journal of the Korea Convergence Society
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• v.9 no.4
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• pp.223-232
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• 2018

Recently universities provide the students with the convergence education as a means of start-up support for addressing the youth unemployment crisis. This study aims to empirically analyze moderating effects of nationality in terms of the effects of employment capability on entrepreneurship and entrepreneurial intentions. For evaluating the effect, a structural equation model was used. The results are as follows. First, employment capability significantly affects entrepreneurship. Second, employment capability does not have a direct impact on entrepreneurial intentions but it has an indirect effect, through entrepreneurship. Finally the moderating effect of nationality was revealed. We hope that the results are applied as the basic data for developing educational programs of convergence technology to promote employment and entrepreneurship.

• Proceedings of the Korea Contents Association Conference
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• 2011.05a
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• pp.329-330
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• 2011

나노기술은 특정의 기술 영역에 속하는 것이 아닌, 나노크기 수준의 물질(소재)이나 부품 또는 소자, 시스템(기계) 등 거의 모든 기술 영역과 관련되어 있는, 응용의 성격이 강한 기술이다. 나노기술 개발 수준은 국가 간, 혹은 기업 간의 경쟁력을 결정할 중요한 요인 중 하나로 자리잡을 것이며, 나노기술의 현황과 발전 양상의 분석은 기술 기반 산업의 미래를 위해서도 꼭 필요한 연구의 주제일 것이다. 본 연구에서는 논문의 서지정보를 통해 최근 국내에서 연구되고 있는 나노기술 중 나노소재 분야의 융합도를 측정하고, 그 결과에 대한 시사점을 제시하고자 한다. 나노소재기술과의 융합은 주로 다학제과학과 화학, 물리학 등 응용분야가 넓고 여러 학문을 포괄적으로 수용할 수 있는 학문에서 많이 발생하였고, 그 외 전기전자, 엔지니어링 분야와의 융합 역시 발견할 수 있었다. 내부중심성과 융합도와의 연관성에 대한 연구가 더욱 활발히 이루어져 그 설명력을 높일 수 있다면, 현실적합성을 획득하여 과학정책과 기술발전에 방향성을 제시하는 하나의 모형이 될 수 있으리라 기대한다.

• Journal of the Korea Convergence Society
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• v.8 no.9
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• pp.293-300
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• 2017

The purpose of this study is to analyze the various cinematic gaze and its realization through Seojong MA-Residence in Yangpyeong-gun, completed in 2016. This paper will focus on what kinds of cinematic concepts and design ideas were selected and considered in the stage of concept design, then how the site plan, floor plan, elevation and section design were developed in the stage of schematic design, and finally how much of the design intentions were successfully realized to the residential building. Architectural sketches, physical models and drawings at the concept & schematic design stage were reviewed. After the construction, some important issues were successfully realized such as interesting cinematic views to outside, visual openness and inflow of sunlight.

• School Mathematics
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• v.18 no.3
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• pp.541-569
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• 2016

The purpose of the study is to investigate elementary school students' creativity-integrated thinking ability and problem solving ability of core ability in 2015 revision curriculum of mathematics department. In addition, the relation between students' creativity-integrated thinking ability and problem solving ability was analyzed on problem solving process. As result, students' both abilities showed moderate level. Furthermore, students' creativity-integrated thinking ability and problem solving ability showed positive correlation.

• Journal of the International Relations & Interdisciplinary Education
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• v.1 no.2
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• pp.1-11
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• 2021

The purpose of this study is to inspect the case of university convergence education on elderly education. The Center for Academic Continuing Education (ZAWiW) at Ulm University in Germany aims to inquiry the diversity and differentiation of university and related institutions for senior education by analyzing the linkages between various major areas related to the subject of the elderly and cooperation models between generations. Various topics related to research and life in the elderly are being conducted with a focus on the participation of elderly learners. Through seasonal academy and Ulm 3rd Generation University, connection between regions and universities and interdisciplinary convergence are being actively provided. It can lead to a differentiated strategy of the university for the education of the elderly.

• Journal of the Korean Society of Safety
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• v.36 no.3
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• pp.60-65
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• 2021

Human error is often in part in the cause of accidents and the result of various factors in an organization. Accidents should be investigated to elucidate all causes. Therefore, to reduce accidents, it is necessary to identify which factors affect human error within the organization. In this study, five groups of influencing factors on human error were selected using previousresearch, and operational definitions were made based on them. In addition, a questionnaire for measuring latent variables by operational definition was developed as an observation variable, and responses were received from employees of chemical companies in Ulsan. Based on SEM (structural equation modeling) analysis, 1) confirmatory factor analysis of variables in the human error model, 2) reliability and validity of latent variables, 3) correlations among latent variables, 4) influencing coefficients among influence factors, and 5) the verification results of the paths that these influencing factors have on human error are introduced in this study.