• Spatial Information Research
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• 제23권6호
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• pp.99-107
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• 2015

최근 오픈소스 소프트웨어에 대한 수요가 높아지면서 오픈소스 소프트웨어 시장은 더 커지고 있으며, 국내에서도 오픈소스 소프트웨어를 활성화하기 위한 다양한 정책이 추진되고 있다. 하지만 아직까지 공간정보 분야의 오픈소스 소프트웨어 활성화를 위한 노력은 거의 이루어진 바 없다. 본 논문은 국내 오픈소스 공간정보 소프트웨어 사용자 요구사항을 분석하여 활용 현장에 적합한 활성화 지원방안을 도출하는 것을 목적으로 한다. 이를 위하여 오픈소스 소프트웨어 분야에서 추진된 활성화 관련 연구를 검토하고, 오픈소스 공간정보 소프트웨어의 인지도, 활용현황, 도입의향 및 활성화 지원방안 등에 대한 설문조사를 실시하였다. 오픈소스 공간정보 소프트웨어의 도입 의향은 기업에서 97%, 학교에서 89%로 높았으나 공공기관에서는 69%로 나타나 공공기관의 인지도 개선을 위한 홍보 활동이 필요함을 시사 하였다. 또한 대부분의 응답자가 활성화 지원방안으로 교육 기회와 기술 지원이 가장 필요하다고 느끼는 것으로 나타났다. 본 논문은 향후 국내 오픈소스 공간정보 소프트웨어 활성화를 위한 정책 수립의 기초 자료로 활용될 것으로 기대된다.

• 인터넷정보학회논문지
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• 제19권3호
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• pp.7-14
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• 2018

As SNS(Social Network Service) becomes a part of our life, new information can be derived through various information provided by SNS. Through the public timeline analysis of SNS, we can extract the latest tour trends for the public and the intimacy through the social relationship analysis in the SNS. The extracted intimacy can also be used to make the personalized recommendation by adding the weights to friends with high intimacy. We apply SNS elements such as analyzed latest trends and intimacy to item-based collaborative filtering techniques to achieve better accuracy and satisfaction than existing travel recommendation services in a new way. In this paper, we propose a social travel recommendation system using item - based collaborative filtering.

• International journal of advanced smart convergence
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• 제10권3호
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• pp.89-96
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• 2021

In various areas of the 4th industry, a big issue is software quality enhancement for stability and reliability of the smart software systems. After revising software promotion law at 2020, we must clearly define requirements and separate design parts and implementation parts of an all public software development contracts. In this study, we need to validate whether the final implementation of software is followed by the original design or not. To do this, we consider the design restoration through software visualization based on reverse engineering. Therefore we propose an UML design extraction and visualization method based on reverse engineering. Based on this, we may validate whether it is implemented according to the original design, and how much visualizes and includes the code the internal complexity for improvement of software quality.

• International journal of advanced smart convergence
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• 제6권1호
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• pp.32-38
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• 2017

In Korea, the act for promoting use of the public data has been enforced since 2013. The Key Government 3.0 Strategy was established for providing the public data as an obligation of public authorities for users to use them free of charge. The aim of open public data and using them targeted by the government is creation of a solution for vitalizing the economy by using the public data. However, the reason for low usability and tangible outcomes despite unlimited provision of open government data is as follows. That is, it is essential to address the issue of difficult software technology required to access public data for using the data. However, with the open API method currently provided, the development procedure is not easy even for IT students or specialized software developers. Therefore, strategies for each step ideal for the level of developers are required to vitalize applications based on the public data and developed by ordinary users. Two strategic methods can be used for facilitating the use of public data and applications developed by ordinary users suggested in this paper on the basis of the public data portal organized by the Ministry of the Interior and provided to all ordinary users. That is, they are applications developed in the web browser environment and those developed in the PC environment. They allow ordinary users to develop and distribute applications based on the public data to contribute to enforcing the policy for facilitating the use of public data of the government just with basic training and basic knowledge from the training without using program coding knowledge of open API which requires the knowledge of development professionals.

• 디지털콘텐츠학회 논문지
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• 제19권3호
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• pp.425-433
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• 2018

최근 공공데이터 개방율이 증가 하였고 관련 개발 역시 증가 하고 있다. 최근 정부의 정책 역시 공공데이터의 개방에 초점을 맞추게 되면서, OECD 회원국 중 공공데이터 지수는 2년 연속 1위를 하게 되었다. 하지만, 정부의 관심과 적극적인 지원에도 불구하고 창업 후 생존율은 OECD 회원국 가운데 최하위로 나타났다. 생존율의 낮은 원인은 소비자가 원하지 않는 제품을 선보이 것이 가장 큰 실패요인으로 파악되었다. 이에 본 연구에서는 창업시 부족한 소비자가 원하는 부분을 분석하여 창업 위치 분석 서비스를 제시한다. 이 과정에서 정부가 지원하는 다양한 공공데이터 중 창업 관련 데이터를 활용한다.

• Journal of Information Technology Applications and Management
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• 제19권2호
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• pp.181-196
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• 2012

The cost of software maintenance occupies about two thirds in the software lifecycle. However, it is not easy to estimate the cost of software maintenance because of various viewpoints about software maintenance, unclear estimation methods, and complex procedures. Until now, the cost estimation model has used compensation factors for software characteristic and environment on the basis of program size. Especially, most of existing models use maintenance rate of total software cost as a main variable. This paper suggests the software maintenance cost estimation model that uses the result of calculating real maintenance efforts. In this paper, we classify functional maintenance and non-functional maintenance as software maintenance activity type. For functional maintenance, present function point of target software is needed to evaluate. The suggested maintenance cost evaluation model is applied to a software case in public sector. This paper discusses some differences between our model and other modes.

• Nuclear Engineering and Technology
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• 제46권1호
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• pp.47-54
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• 2014

The protection of nuclear safety software is essential in that a failure can result in significant economic loss and physical damage to the public. However, software security has often been ignored in nuclear safety software development. To enforce security considerations, nuclear regulator commission recently issued and revised the security regulations for nuclear computer-based systems. It is a great challenge for nuclear developers to comply with the security requirements. However, there is still no clear software development process regarding security activities. This paper proposes an integrated development process suitable for the secure development requirements and system security requirements described by various regulatory bodies. It provides a three-stage framework with eight security activities as the software development process. Detailed descriptions are useful for software developers and licensees to understand the regulatory requirements and to establish a detailed activity plan for software design and engineering.

• 경영과학
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• 제19권2호
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• pp.191-204
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• 2002

As the portion of information systems (IS) budget to the total government budget becomes greater, the cost estimation of IS development and maintenance projects is recognized as one of the most important problems to be resolved for scientific and efficient management of IS budget. Since IS budget makes much effect on the delivery time, quality and productivity of IS projects, the exact cost estimation is also necessary for the successful accomplishment of IS projects. The primary concern in the cost estimation of IS projects is software cost estimation, which requires the measurement of the size of softwares. There are two methods for sizing software : line-of-code approach, function point model. In this paper, we propose a function-point-based model for estimating software cost. The proposed model is derived by collecting about fifty domestic IT projects in public sector and analyzing their relationship between cost drivers and development effort. Since the proposed model is developed by simplifying the function point model that can be used only when detailed user requirements are specified, it can be also applied at project planning and budgeting phase.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2003년도 추계학술발표논문집 (중)
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• pp.797-800
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• 2003

개방형 LBS 플랫폼의 등장은 다양한 플랫폼을 가진 이동 통신 업체들 사이의 위치정보 연동을 용이하게 할뿐만 아니라, 위치정보를 이용하는 다양한 LBS 응용 솔루션 개발을 가능하게 하였다. 본 논문은 이러한 개방형 LBS 플랫폼과 연동하여 대중교통정보를 모바일 클라이언트에 제공하는 웹 서비스 솔루견을 제안 구현한다.

• 한국IT서비스학회지
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• 제8권2호
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• pp.43-70
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• 2009

As software development and maintenance cost increase quickly, information systems managers are more concerned about how to effectively manage software cost. To estimate the software development cost, most public institutes of Korea use the software cost estimation standard established by the government. Unfortunately, the accuracy of the estimation derived from the standard has not been satisfactory in spite of repetitive modifications made to improve it. One of the major reasons for the inaccuracy is that the standard has too small a number of cost adjustment factors to reflect the various characteristics of a software development project. To remedy this problem, we propose new cost adjustment factors which can be incorporated into the standard and are important to enhance the estimation accuracy, based on the analysis of several well-known software estimation models. Furthermore, by applying the proposed model to real world software projects, we show that the proposed model can produce more accurate estimates than the current standard.