• The KIPS Transactions:PartD
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• v.8D no.6
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• pp.835-842
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• 2001

We propose a software-reliability growth model incoporating the amount of testing effort expended during the software testing phase. The time-dependent behavior of testing effort expenditures is described by a Weibull curve. Assuming that the error detection rate to the amount of testing effort spent during the testing phase is proportional to the current error content, a software-reliability growth model is formulated by a nonhomogeneous Poisson process. Using this model the method of data analysis for software reliability measurement is developed. After defining a software reliability, we discuss the relations between testing time and reliability and between duration following failure fixing and reliability are studied in this paper. The release time making the testing cost to be minimum is determined through studying the cost for each condition. Also, the release time is determined depending on the conditions of the specified reliability. The optimum release time is determined by simultaneously studying optimum release time issue that determines both the cost related time and the specified reliability related time.

• Journal of the Korea Society of Computer and Information
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• v.17 no.5
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• pp.157-167
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• 2012

The purpose of this paper is to develop an OLAP (online analytical processing) database system that supports the SMBA (Small and medium Business Administration) policy funding. A heterogeneous dimension schema will be central in staged support of policy funds. In this paper, therefore, we designed the FREQUENCY dimension table which has a heterogeneous dimension schema structure. In this paper, we made a model of measuring SME (small and medium-sized enterprise) size first. The model is composed of six determinants of firm growth such as sales, employment, own technology, the operating profit to sales ratio, the debt ratio, and the current ratio. We developed the OLAP database system by using three dimensions including the FREQUENCY dimension, and using the model of measuring SME size. Also we assessed past decisions on policy funding in the Small Business Policy Funds Support Project (2004-2007) by using the OLAP database system.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.18 no.6
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• pp.71-86
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• 2023

Although starting a business plays a key role in strengthening national competitiveness and creating jobs, it is recognized as a risky choice. Failure to start a business can result in a wide range of negative effects, such as loss of personal wealth as well as deterioration of national competitiveness. This study considers startups that have reached a level of sustainable growth by achieving performance above the minimum profitability and sales standards for KOSDAQ listing, or achieved EXIT through sale or listing, as successful startups. based on the practical experiences of 23 successful entrepreneurs and Based on perception, the importance and priorities of startup success factors were derived through stratification analysis (Analytic Hierarchy Process, AHP), and interviews were conducted. In particular, using the ERIS model, we comprehensively analyze various variables of a start-up by considering the four elements of the entrepreneur, resources, industry, and strategy, and examine the changes and importance of success factors according to the characteristics of each growth stage of the start-up. As a goal, we specifically identified the challenges and opportunities faced by entrepreneurs at each stage. As a result of the study, the order of importance of the top factors of success factors in the start-up period was found to be the entrepreneur, resources, industry, and strategy. In particular, the importance of the entrepreneur's entrepreneurship spirit, special capabilities, general capabilities, and human resources was emphasized. The order of importance of the top factors of success factors during the growth period was found in the following order: entrepreneur, resources, industry, and strategy. In particular, the importance of general capabilities, entrepreneurship, and human and organizational resources was emphasized. This study is significant in that it analyzes startup success factors from the perspective of successful entrepreneurs and provides useful insights and directions to entrepreneurs and policy makers.

• 한국벤처창업학회:학술대회논문집
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• 2008.04a
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• pp.253-301
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• 2008

본연구는 우리나라의 창업보육센터가 태동기, 양적 기반 확충기를 거쳐 이제 질적인 성장을 고려해야 할 성숙기의 단계에 접어들고 있는 시점에서 중소 벤처기업의 가장 어려운 난관인 Marketing 취약점을 제도적으로 지원함으로써 BI 입주기업의 성공을 도와 지역경제를 회생시키고 나아가 국가경제의 부흥을 도모할 필요가 있어 BI입주기업들을 대상으로 설문조사하여 분석 하였으며, 그 결과를 토대로 해결방안을 모색하였다. 조사 분석 결과 BI입주기업은 기술력과 사업성은 우수하나, 대외 인지도 및 마케팅능력 부족 등으로 매출신장은 미흡한 실정이고, 일부 BI 입주업체를 위한 마케팅 교육, 전시회 참가 및 홈페이지 제작 등을 지원하고 있으나, 그 성과는 극히 미홉하며, 기존 중소기업을 위한 판로지원 시책은 그 지원규모가 영세하고 또한, 기업의 성장단계 면에서 볼 때 초기 단계에 있는 BI입주기업이 이들 시책을 활용하기에는 애로가 있다. 경영자원의 부족에 따른 판매성과 미흡, 이에 따른 신규 경영자원 확보 실패와 계속적 판매 부진의 악순환을 탈피하기 어려울 것으로 판단되어진다. 이에 해결방안으로는 BI 입주기업에 대한 마케팅 지원을 활성화하기 위해서는 BI 입주기업만을 대상으로 하는 사업과 예산의 확보가 절대 필요하며 이를 시행함에 있어서는 수요자인 BI 입주기업이 필요로하는 서비스에 최우선을 두면서 소요 예산을 감안하는 것이 필요하다. 지원대상에 있어서는 BI 입주기업 전체를 지원하는 것은 예상되는 사업 비용상 불가능하며 차등적 지원을 통해 성공모델을 육성하는 것이 필요하리라고 전망된다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.3 no.1
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• pp.73-103
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• 2008

Over the past few years, "business models" has surged into the management vocabulary. But, while it has become quite fashionable to discuss business models, there has been still much confusion about what are business models and how they could make. In fact, business models can serve a positive and powerful role in corporate management. While other authors have recently offered definitions of "business model", none of them appears to be generally accepted. This paper presents the absence of the generally definition of the business models, elements of business model and classify business logic. To help start-up entrepreneurs better understand, found and check business models thus, this paper propose a method of business model, understanding, founding and checking. The dissertation will present an effective business model building method which is necessary for the start-up entrepreneurs to start business. This paper consists of three parts. first is showing the previous study of business model. The second is the re-definition business model and elements based on the first and to present a new method of business model plating and checking for start-up IT (information technology) company's entrepreneurs. The last is application of the methode. This study applied the methode to a company which is located in "DAEDEOK INNOPOLIS"; this company has specialized Information technology.

• Journal of the Korean Society of Propulsion Engineers
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• v.4 no.4
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• pp.9-17
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• 2000

The crystal growth and dissolution rates were calculated by solving a model equation, which involved the dissolution of the metastable phase($\beta$-HNIW) and growth of the stable phase($\varepsilon$-HNIW), together with the mass balance equation. The model has been successfully used to simulate available kinetic data for the $\beta$$\longrightarrow$$\varepsilon$ polymorphic transformation via a solution phase. From the effectiveness factor based on the two-step model, it was found that the surface integration contribution to the process was comparatively small, and a diffusion dependency decreased with an increase of the mass fraction of chloroform in the mixed solvents of ethyl acetate and chloroform. Appling these kinetics in process simulation allowed for the prediction of the product size of $\varepsilon$-HNIW.

• Korean Journal of Construction Engineering and Management
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• v.25 no.1
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• pp.50-61
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• 2024

The market for compact houses is growing due to the demand for floor plans prioritizing user needs. However, clients often have difficulty communicating their spatial requirements to professionals including architects because they lack the means to provide evidence, such as spatial configurations or cost estimates. This research aims to create a framework that can translate sketched data-driven spatial requirements into 3D building components in BIM models to facilitate spatial understanding and provide building performance analysis to aid in budgeting in the early design phase. The research process includes developing a process model, implementing, and validating the framework. The process model describes the data flow within the framework and identifies the required functionality. Implementation involves creating systems and user interfaces to integrate various systems. The validation verifies that the framework can automatically convert sketched space requirements into walls, floors, and roofs in a BIM model. The framework can also automatically calculate material and energy costs based on the BIM model. The developed frame enables clients to efficiently create 3D building components based on the sketched data and facilitates users to understand the space and analyze the building performance through the created BIM models.

• The Journal of the Korea Contents Association
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• v.22 no.1
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• pp.148-161
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• 2022

Korea's design developed closely related to economic growth and plays a key role in material growth, wealth growth, and consumption promotion today. Of course, it is true that Korea's design level has grown significantly, but it has not reached a trend-leading level. Behind this, it is thought that one of the reasons behind this is that most design companies are biased towards trend research and benchmarking from a supplier perspective, resulting in the creation of design sculptures. If you look at the examples that lead the world's design trends, you can see that their subjective thinking from the author's point of view accounts for a significant portion of design sculpture creation. Through an in-depth interview with designers and artists at both extremes of the spectrum of thought, I want to look at examples of self-expression design development and get implications for suggesting conceptual models of self-expression design sculpture. Through this, a conceptual model was proposed, which is organized into a five-step design creation process in which balanced thinking is achieved by combining the thinking system and process according to the writer's point of view with the majority of design creation dominated by supplier perspective.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.565-568
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• 2018

본 연구에서는 Lasso Regression을 기반으로 하여 지역 경제 성장과 비만율을 예측한다. 연구는 3단계로 나누어 진행된다. 우선 지역성장을 대변할 수 있는 가상의 GDP 수치를 구한다. 그 다음 가상의 GDP 수치와 비만율 데이터를 이용하여 학습모델을 만든다. 마지막으로 이전의 데이터를 이용하여 앞으로의 성장을 예측하고 학습모델에 적용하여 비만율을 예측한다. 본 연구의 데이터는 학습데이터와 실험데이터를 구성된다. 학습데이터로는 국내의 8도 중 하나인 강원도의 데이터를 이용하며 실험데이터로는 강릉과 원주의 데이터를 이용한다. 평가 비교 대상으로는 과거의 흐름을 반영하는 최소자승법 예측기법을 선정하여 비교한다. 연구 결과 강릉의 경우 비교 데이터와의 오차율 평균은 1.22%로 큰 차이가 없음을 알 수 있다. 따라서 본 연구에서 제안하는 방법이 과거의 흐름을 기반으로 작성됨을 알 수 있다. 하지만 단순히 과거의 흐름만을 통해 예측하는 것은 여러 요소가 복합적으로 작용하는 비만율 예측에 알맞지 않기 때문에 본 연구 방법이 유의미하다고 여겨진다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.143-150
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• 2003

Using integrated construction project data is necessary for efficient management of construction projects. Recently IFC(Industry Foundation Classes) are proposed as integration method based on interoperability and there have been several cases of system integration based on IFC. The concept of interoperability proposes the construction object as data sharing protocol between systems for system integration and independence of each system. This study proposes system development strategy by phases considering work scope and procedure of processes based on the concept of interoperability. This is proposed to overcome tendency of developing system which doesn't support real work processes as result of inclining to the format of IFC instead of properly using IFC's interoperability concept to real work scope and procedure.