• 산업공학
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• 제13권2호
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• pp.225-233
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• 2000

In this paper, we develope a genetic algorithm for the erection scheduling in shipbuilding. Erection, the final manufacturing stage of shipbuilding, involves the landing and joining of blocks at drydock. Since several ships are built simultaneously at the same drydock and they compete with the common constrained production resource such as labor, space, and crane, we should consider both ship-specifics and common resource constraints for the desirable erection scheduling. Ship erection should also satisfy the predetermined dock cycle given from higher level production planning. Thus, erection schedule of a ship can be represented as a PERT/CPM project network with its own deadline. Since production resources are shared, the erection scheduling become the so-called multi-project scheduling problem with limited resources, which can not be solved easily due to the large size of project network. We propose a function as a minimization of load index which represented the load deviation over time horizon considering the yard production strategy. For the optical parameter setting, we tried various experiments. We verified that the proposed approach was effective to deal with the erection scheduling problem in shipbuilding.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.586-596
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• 2021

Software organisations follow different methodologies for the development of software. The software development methodologies are mainly divided into two categories, including plan-driven and agile development. To attain project success, it is very significant to consider risk management during whole project. Agile development is considered risk-driven, but many risks are unreported at the industrial level. The risks can be divided into three categories, including (i) development risks, (ii) organisations risks, and (iii) people-oriented risks. This paper deals with Development risks specifically. Several risks related to development are faced by people working in the industry while dealing with agile development. Their management among the industry is a big issue, so this paper emphasises ARMF based on development-related risks by following agile development. This research work will help software organisations to prevent different project-related risks during agile development. The risks are elicited at two-level, (i) literature-based and (ii) IT industry based. A systematic literature review was performed for eliciting the agile risks from the literature. Detailed case studies and survey research methods were applied for eliciting risks from IT industry. Finally, we merged the agile development risks from literature with standard industrial risks. Hence, we established an agile risk mitigation framework ARMF based on agile development and present a groundwork established in light of empirical examination for extending it in future research.

• 한국정보시스템학회지:정보시스템연구
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• 제28권1호
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• pp.73-96
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• 2019

Purpose The purpose of this study is to examine the effect of communication-structure characteristics on performance in online collaboration using the data from Github, one of representative open source software development platforms. We analyze the impact of in-degree/out-degree centralization and reciprocity of communication network on collaboration performance in each project. In addition, we investigate the moderating effect of owner types, an individual developer or an organization. Design/methodology/approach We collect the data of 838 Github projects, and conduct social network analysis for measuring in-degree/out-degree centralization and reciprocity as independent variables. With these variables, hierarchical regression analysis is employed on the relationship between the characteristics of communication structure and collaborative performance. Findings Our results show that for the project owned by an organization, the centralized structure of communication is not associated with the collaboration performance. In addition, the reciprocity is positively related to the collaboration performance. On the other hand, for the project owned by an individual developer, the centralized structure of communication is positively related to the performance, and the reciprocity does not show the positive relationship on the performance.

• 한국콘텐츠학회논문지
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• 제15권5호
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• pp.560-569
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• 2015

크라우드펀딩은 창의적인 프로젝트나, 창업 또는 소규모 기업의 영업 확장 등을 위해 인터넷과 같은 온라인 플랫폼을 통해 많은 사람들로부터 자금을 조달하는 방법으로서 후원형과 지분형이 있다. 특히 후원형 크라우드펀딩은 문화, 예술, 기술 분야의 창의적인 프로젝트를 위한 펀딩에 많이 사용되어 왔으며 후원형 펀딩 사이트로 가장 잘 알려진 킥스타터에서 지난 6년 동안 펀딩에 성공한 8만 건의 프로젝트와 후원자들의 자료를 분석함으로써 후원형 크라우드펀딩 후원자들의 특성과 펀딩의 성공 요인을 살펴보았다. 펀딩 참여자들이 프로젝트 후원을 약정할 때 개별 프로젝트의 상업적인 수익성이나 이윤에 대한 고려보다는 프로젝트에 대한 본인의 선호도에 의하여 선택하며, 후원자들은 게임, 영상, 디자인, 기술, 음악 분야에 가장 많은 후원을 하였고 최근에는 기술 분야로 크게 이동하고 있음을 보여주고 있다. 펀딩 프로젝트의 후원자 수는 소셜네트워크의 리플효과와 블록버스터효과에 의하여 급속히 증가되므로 프로젝트 시행자의 소셜네트워크 크기와 포탈의 인지도가 펀딩 성공률과 관련이 있다. 다른 성공 요인으로는 포탈 참여자들에게 프로젝트의 비전을 얼마나 잘 이해시키고 또 지속적으로 참여자들과 소통하느냐에 크게 영향을 받는 것으로 나타나고 있다. 우리나라는 크라우드펀딩을 도입하기 위한 제도적인 노력이 진행 중이며 소셜네트워크의 환경은 이미 성숙되어 있다고 볼 수 있어서 크라우드펀딩 산업이 쉽게 성장하리라 기대한다. 하지만, 지분형 크라우드펀딩은 후원형 펀딩과는 참여자 특성이 다르므로 지분형 크라우드펀딩에 대해서 더 많은 연구가 필요할 것이다.

• Journal of information and communication convergence engineering
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• 제6권2호
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• pp.140-145
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• 2008

We recently developed new offshore observation system using USN buoy, widely used to measure the directional properties of ocean wave, seawater temperature, UV light, longitude and latitude of the buoy using GPS module. This paper also documents the development and implementation of a buoy network for acquisition of data of base station with buoys. The major phases of the project include specification of the network, physical construction of network nodes, software development for control of nodes, and testing of network performance. We described some of the practical issues involved in designing, building and deploying a buoy network for oceanographic monitoring. The paper explains some of the design decisions and their consequences, and some of the lessons learned from a first lesson network trial at sea.

• 한국국방경영분석학회지
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• 제23권1호
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• pp.115-137
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• 1997

It was required Integrated Network Management Architecture(INMA) with consistency and standardization in order to support efficiently communication service for operators and users. In such ITU-T(International Telecommunication Union - Telecommunication) recommended TMN(Telecommunication Management Network) which is Network management architecture for telecommunication, and intended to achieve uniform and comprehensive network management using standardized network management interface. This paper proposes C31 management services and management functions based on ITU-T and RACE project. This designs C31 INMA based on TMN concept in order to manage efficiently C31 communication network. The C31 INMA supports to manage C31 LAN and WAN devices and lines with global and correspondence, and helps Integrated Network Management system design and implementation.

• 한국통신학회:학술대회논문집
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• 한국통신학회 1986년도 춘계학술발표회 논문집
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• pp.119-124
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• 1986

This paper describes the development of the KORNET that may be regarded as the latest public packet-swiched computer communication network. The KORNET project included the development of the network management center (NMC), a network concentrator. For the KORNET we use the virtual circuit(VC) method, a distributed adaptive routing algorithm, and a dynamic buffer management algorithm. The NMC acts as a nerve center of the network, performing such function as network monitoring, subscriber and network management and routing management, etc. As for the NNP and NC hardware, we have implemented them with the 16-bit multitask/multiprocessor technology using MC68000 microprocessors. Softwares have been developed using C language is required for real time processing. All the network protocols we have developed comply completely with the latest CCITT recommendations including X.25, X,3 , X.28 and X.29.

• 건축역사연구
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• 제26권5호
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• pp.7-18
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• 2017

The 1960s in Britain was the period of rapid economic and social change. Under this circumstance, the visionary architect Cedric Price designed the Fun Palace, of which idea came from the theatre producer, Joan Littlewood. They hoped this place to be an improvisational learning space, so Price proposed the building as 'kit of parts' which can respond to programmatic indeterminacy. Cybernetics was introduced to control this flexibility dramatically changed the character of the project from 'theatre of people' to 'interactive machine'. That resulted in the change of the status of user from subjective human beings to abstract data in the cybernetic algorithm as well, and led the project to a completely opposite direction from that Price intended. After Fun Palace, cybernetics technology could still be found in his other projects, and it can be assumed that this was because the algorithmic system of cybernetics were on the same line of thought of Price's idea - anti-building or 'kit of parts'. The effects of cybernetics varied in projects; Similar negative effect in Fun Palace can be found in Generator project, but on the other hand, in Potteries Thinkbelt project, cybernetics showed a positive aspect by contribution to the development of project on the formal analogy of algorithmic network.

• 한국농촌건축학회논문집
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• 제7권3호
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• pp.19-26
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• 2005

In this study treats 'Rural Village Development Project'. The ministry of Agriculture and Forestry and Korea Agricultural & Rural Infrastructure Corporation are enforcing this from 2004. A purpose of 'Rural Village Development Project' is as follows. Repairs a function of production farms-residing rest tourism generally after connecting a neighborhood village having the same nature in a small scale unit. Too local human resources and material resources is utilized, and develops various types with specialization. As a result, it is to improve with the quality of life of a farmer. This study finds problems to have broken out in Rural Village Development Project. Therefore, recognize whether it is on to be devoted to rural village and rural community inhabitants to solve the problem how. And analyze a policy characteristic of Rural Village Development Project and basic course. Therefore, provide with materials when decides on plan course of Rural Village Development Project through this. As a result, it is a purpose to give help to Rural Village Development Project. The results of study are follows; First, A state inhabitants, professional group, administration understand an agricultural village, and to be able to learn must be prepared first. Second, the enough time that can carry out study is necessary. Third, must present the guidebook which expresses a local characteristic well. Fourth, it is specialist database construction and network formation.

• 농촌지도와개발
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• 제28권3호
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• pp.137-151
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• 2021

The study aims to explore the success factors focus on the system for implementing the New Rural Vitalization Plus Project (NRVPP). It offers recommendations to bring the success of the community development projects and support the strategies in political and practical. Conclusions and recommendations for improving the practice of implementation are based on the results of the in-depth interview with 9 developers and experts joining the NRVPP. Findings show that the promotion team as the NGO for the community development project used the collaboration and cooperation network to progress for the success of the project although they suffered the political, legal, and institutional problems hindering the normal function of each promotion entity in municipalities. The implications of the study were presented in the conclusion section.