• 지식경영연구
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• 제18권2호
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• pp.45-63
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• 2017

In the success of an IT project, the role of S/W developer in carrying out the project is critical and crucial. However, compared to its importance, there is only a few studies on the role of human resources in software engineering field, mainly focusing on technology. Based on regulatory focus theory, this study examines how the effect of technology recency on developer's intention to participate in the IT project changes depending on the regulatory focus of the software developer. As a result of the experiment, it was confirmed that there is a difference in the effect of technology recency on project participation intention according to the condition of developer's regulatory focus. This study is meaningful because it extends regulatory focus theory to software engineering field and made theoretical contribution to the research field of behavioral software engineering. In practical, it was possible to suggest a way to improve the intention of the developer to participate in the project, by understanding the software developer in the IT project, considering the software developer propensity and project characteristics.

• 산업경영시스템학회지
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• 제39권4호
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• pp.137-146
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• 2016

In recent years, business environment is faced with multi uncertainty that have not been suffered in the past. As supply chain is getting expanded and longer, the flow of information, material and production is also being complicated. It is well known that development service industry using application software has various uncertainty in random events such as supply and demand fluctuation of developer's capcity, project effective date after winning a contract, manpower cost (or revenue), subcontract cost (or purchase), and overrun due to developer's skill-level. This study intends to social contribution through attempts to optimize enterprise's goal by supply chain management platform to balance demand and supply and stochastic programming which is basically applied in order to solve uncertainty considering economical and operational risk at solution supplier. In Particular, this study emphasizes to determine allocation of internal and external manpower of developers using S&OP (Sales & Operations Planning) as monthly resource input has constraint on resource's capability that shared in industry or task. This study is to verify how Stochastic Programming such as Markowitz's MV (Mean Variance) model or 2-Stage Recourse Model is flexible and efficient than Deterministic Programming in software enterprise field by experiment with process and data from service industry which is manufacturing software and performing projects. In addition, this study is also to analysis how profit and labor input plan according to scope of uncertainty is changed based on Pareto Optimal, then lastly it is to enumerate limitation of the study extracted drawback which can be happened in real business environment and to contribute direction in future research considering another applicable methodology.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제5권4호
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• pp.489-497
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• 1999

국내의 ATM 기술은 대부분 교환기 시스템 개발에 집중되어 있었고 최근에는ATM 서비스 분야에 대한 개발 요구가 있다. 이러한 가운데 Internet 서비스는 데이타 망의 기본 서비스로 자리잡았으며, ATM망도 기본적으로 Internet 서비스를 지원하여야 한다. IETF의 IPOA (Classical IP and ARP over ATM)는 국내 망 여건 및 구현의 용이성으로 Internet 서비스를 위한 프로토콜중 가장 선호 대상이지만 RFC사양의 허술함, 구현자의 사양에 대한 이해 부족과 초기 외산 장비 제조 업체들의 자체 사양때문에 기존의 IPOA장비들과 상호 운용 시험에서 후발 IPOA 개발자는 시행착오를 겪어야만 한다. 본 논문에서는 기존 외산 IPOA 장비들과 자체 개발한 장비와 상호 운용 시험을 수행하면서 겪은 사례 연구를 정리하였고 이를 기초로 기존의 외산 IPOA와 상호 운용할 수 있는 최종 요구 사항을 제시하였다. 본 논문을 기초로 IPOA 장비를 개발한다면 국내 후발 ATM 장비 업체는 개발의 시간 및 노력을 줄일 수 있고 향후 IP/ATM 국내 기술력 향상에 도움이 될 것이다.Abstract While we have been focusing on development of ATM switching systems, recently the demand on service by use of ATM switching system is increasing rapidly. Among various ATM services, the Internet service should be provided in an ATM network since the Internet service has been the basic data service. Many domestic engineers consider the classical IP and ARP over ATM (IPOA) to be an appropriate method for interworking of IP and ATM because the IP is the network protocol used in most domestic data networks, and the IPOA is simpler and has less overhead than other approaches. However, it is not easy for a developer to implement the IPOA function module interoperable with other existing ones due to the incomplete description of IETF's RFC specifications, misunderstanding of designer and/or developer, and incompatible vendors' specifications. In this paper, we show several case studies undertaken for interoperability tests of IPOA products between our product and other vendor's products, and discuss the implementation requirement of the IPOA software to be interoperable with the existing IPOA equipment.The design and implementation requirements presented in this paper will reduce the effort of IPOA-developing engineers and time required for interoperability test. Also, this contribution will be helpful in IP/ATM interworking areas.

• 한국조경학회지
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• 제29권4호
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• pp.24-33
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• 2001

The purpose of this paper is to examine the differences of user´s satisfaction of development elements of natural recreation forest(NFR) developed by public and private bodies in order to answer the research question: What is the differences of user´s satisfaction of development elements of NFR\ulcorner After reviewing the literature, mechanism of outdoor recreation, and development elements in NRF, we constructed the conceptual framework and have formulated the hypothesis of this research. We had obtained data through a questionnaire, which surveyed 584 visitors at 10 of the 72 natural recreation forests in Korea in 1999. We have analyzed the data using he descriptive statistical method, the mean difference test, and logistic regression method. We have found that 1) all the development elements have turned out to be significantly different from the mean difference test, 2) the two elements of atmosphere and activity have turned out to be statistically significant in determining the difference of NFR developed by public and private body in logistic regression analysis while user´s satisfaction in recreational resources, facilities and service make no differences between public and private NRF, 3) the higher the degree of user´s satisfaction in atmosphere and activity at NFR, the more the NFR developed by private body, and 4) their relative contribution of atmosphere and activities on whether the NFR is developed by public or private body have been turned out to have 0.258 and 0.242 respectively, which have a similar importance. The research results suggest that a guideline for the creation of marketable NFR by public and private developer, and development of use-programs and recreational atmosphere be recommended in the planning and development process of NRF. The approach and anlaysis method adopted by this research is highly useful for an evaluation of NRF developed by the tow bodies and development of devices for increasing user´s satisfaction and marketing positioning of NRF by the tow developers. It is recommended that more empirical study on individual development elements affecting user´s satisfaction be performed in the future.

• 한국IT서비스학회지
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• 제18권5호
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• pp.209-224
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• 2019

When evaluating the performance of a NPD(New Product Development) project, it is common to evaluate the project performance according to the achievement of the planned goal in terms of time, quality and cost management, which are usually three main constraints of the project. The evaluation of the financial factors by which sales contributed to the return of the company is more influential. This is why companies need to increase sales and raise profits. Therefore, it is more reasonable to evaluate the sales performance of NPD projects over a certain period of time against the input costs. At this time, we can analyze the causes of inefficient projects and compare them with other projects and find out how to improve the sales performance to help the company increase its competitiveness. In this paper, we analyze the relative efficiency of the sales performance on the input of the projects by using the actual sales in the period of one year after mass production of the NPD projects of 'S' company in ICT industry. Input factors include developer resource and development cost for the NPD reported after the project has been completed, the delay weeks for the schedule targeted at the project planning stage, and the number of quality issues due to development design faults during initial mass-production. The sales figure and the contribution margin of the product after one year from the start of mass production are defined as the output factors. In this paper, we analyze the efficiency of the projects by using data envelope analysis (DEA). As a result, we found out the reason of the inefficient project of DMUs according to the differences in the characteristics of the efficient and inefficient B2B markets based on the result of DEA of NPD projects. Thus, the goal of this paper is to identify strategies for improving sales performance of NPD projects in inefficient markets.

• 한국전자거래학회지
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• 제20권1호
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• pp.23-43
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• 2015

발전된 정보통신기술은 개방형협업을 위한 오픈 플랫폼 역할을 수행함으로써 개인간 상호협력을 용이하게 한다. 본 연구에서는 사회연결망이론을 바탕으로 개방형협업의 대표적 형태로 주목받고 있는 오픈소스 프로젝트의 상호협력 네트워크를 살펴보고자 한다. 특히 상호협력 네트워크 내에서의 개방형협업 기여도가 높은 참여자의 네트워크 중심구조를 분석해보고자 한다. 이를 위해 대표적인 오픈소스 프로젝트 플랫폼인 깃허브(GitHub)의 782개 리파지토리의 8,101명의 개발자를 대상으로 782개의 협업 네트워크를 도출함으로써, 협업에 있어 기여도가 높은 개발자의 연결 근접 매개 중심성 특성을 분석하였다. 분석 결과, 연결 매개 근접 중심성이 높은 개발자의 커밋수가 많아지는 것으로 나타났으며, 이중에서도 매개중심성에 의해 그 관계를 가장 잘 설명할 수 있는 것으로 나타났다. 또한 네트워크 사이즈가 클수록, 허브가 존재할수록 개발자의 매개중심성과 커밋수 간의 관련성이 더욱 커지는 것으로 나타났다. 본 연구는 향후 개방형협업의 성공적인 운영을 위한 시사점을 제시해줄 것으로 기대된다.

• 한국정보과학회논문지:소프트웨어및응용
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• 제34권3호
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• pp.196-211
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• 2007

제품 계열 공학에서 제품의 공통성 및 가변성 분석을 결정짓게 하는 기준인 휘처 (feature) 분석에 대한 기존 연구는 개발자의 직관이나 도메인 전문가의 경험에 근간으로 분석 기준이 객관적이지 못하며, 비정형적인 휘처 분석으로 인한 이해 당사자 (stakeholder)의 공통된 휘처의 이해 부족 및 불명확한 휘처를 추출하는 문제점이 있었고, 기 개발된 소프트웨어에서 사용된 휘처의 재사용 개념이 부족했었다. 본 논문에서는 특정 도메인의 휘처 모델을 온톨로지로 변환하여 의미 기반 유사성 분석 기준에 의해 휘처의 공통성과 가변성을 추출하는 기법을 제시한다. 이를 위해, 먼저 공통된 휘처 중심의 메타 휘처 모델 기반으로 휘처의 속성을 정립하고, 메타 모텔에 준거하여 휘처 모델을 생성하여 온톨로지로 변환 후, 휘처 온톨로지 리포지토리 (Repository)에 저장한다. 이후， 동일 제품 계열 도메인의 휘처 모델 구축 시, 기 존 생성 모델과 온톨로지의 의미 기반 유사성 비교 분석 기법을 통해 휘처의 공통성과 가변성을 추출하는 것이다 또한 유사성 비교 알고리즘을 툴로 구현하였으며, 전자 결재 시스템 도메인의 실험 및 평가를 통 해 효과성을 보인다. 본 기법을 통해 메타 휘처 모델의 구문적 정립으로 이해성과 정확성을 제고시켜 고품질의 휘처 모델을 구축할 수 있으며， 온톨로지의 의미 기반 매핑으로 휘처의 공통성 및 가변성 추출을 정형화할 수 있고, 재사용성을 향상시킬 수 있다.