• Journal of the Korea Institute of Building Construction
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• v.10 no.4
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• pp.67-74
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• 2010

Currently domestic rural communities are coping with the modernization of farming and agricultural competitiveness. Nevertheless, year after year many agricultural facilities have accidents due to the collapse or damage of facilities due to natural disasters or technical problems. This research is the development of a P-C-M prototype support system to solve the problems related to collapse or damage accidents at agricultural facilities. The P-C-M support system is a process encompassing procurement, construction and maintenance. In this research, a P-C-M support system process module design is performed, a P-C-M support system algorithm is developed, and a P-C-M support prototype system is developed. In conclusion, the developed P-C-M support system is expected to contribute to information-sharing on agricultural facilities, and communication between the user and suppliers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.1
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• pp.735-743
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• 2015

The service oriented architecture assures flexibility of enterprise application development, so it supports agile reaction to business change. On the other hand, considerable effort is needed to develop a service by combining business and constraint consumes because the entire combination logic should be changed according to the change in business rule. To improve the current method, this paper applied an aspect oriented approach to service system development. In this paper, the rule concern is proposed in addition to the core concern and cross cutting concern of aspect oriented approach. The rule concern is extracted from business rules included in the business processes and services. The rule concern is classified into the process rule aspect and service rule aspect according to the level of the rule. In the proposed approach, system is modularized into the core concern, cross cutting concern and rule concern through separation of concern, and they are maintained independently. Therefore, the adaptability, reusability, and maintainability of a service system will be enhanced.

• Journal of KIISE:Software and Applications
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• v.34 no.9
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• pp.773-784
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• 2007

Aspect-Oriented Programming (AOP) has focused on improving the modularity of the crosscutting concerns. The existing AOP methodology has been mainly focused on the implementation method of programs and thus developer-oriented concern extraction and development were performed. Recently, many studies for applying AOP to the entire software development processes ranging from requirement analysis to design and implementation are being conducted. But specification methods having consistency from the initial phase of concern extraction to implementation phase are not sufficient. In this paper, we have presented the specification of crosscutting concerns so as to solve these problems. The specification of crosscutting concerns provides guidelines and specification from the requirement analysis phase to the process of converting extracted crosscutting concerns to codes. This method reduces the gap to the process of mapping extracted crosscutting concerns into a single class and thus enhances program development and understandability. In addition, it raises program reusability, maintenance and extensibility by enhancing traceability.

• The Journal of the Convergence on Culture Technology
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• v.6 no.4
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• pp.813-818
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• 2020

Recently, with the rapid increase in technology and users of smart devices, the smart watch market has grown, and its utility and usability are continuously expanding. The strengths of smartwatches are wearable portability, application immediacy, data diversity and real-time capability. Despite these strengths, smartwatches have limitations such as battery limitations, display and user interface size limitations, and memory limitations. In addition, there is a need to supplement developers and standard devices, operating system standard models, and killer application modules. In particular, monitoring and application of user's biometric information is becoming a major service for smart watches. The biometric information of such a smart watch generates a large amount of data in real time. In order to advance the biometric information service, stable peer-to-peer transmission of sensing data to a remote smartphone or local server storage must be performed. We propose a synchronization method to ensure wireless remote peer-to-peer transmission stability in a smart watch system. We design a wireless peer-to-peer transmission process based on this synchronization method, analyze asynchronous transmission process and proposed synchronous transmission process, and propose a transmission efficiency method according to an increase in transmission amount.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06b
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• pp.513-518
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• 2007

시뮬레이션 방법론에 있어서 모델기반 시뮬레이션과 프로세스기반 시뮬레이션으로 나눌 수 있는데, 재사용성, 확장성, 시뮬레이터 기술 용이성 등의 장점으로 모델기반 시뮬레이션이 많이 사용되고 있다. 이러한 이유로 근래에는 컴퓨터 시스템, 항공, 자동차 등에서 모델 기반 시뮬레이션 방법이 사용되고 있다. 모델기반 시뮬레이션 방법으로 수학적 이론을 기반으로 모델을 정의하는 DEVS(Discrete Event System Specification) 형식론은 계층적이고 모듈화 된 형태로 이산사건 시스템을 기술한다. 대규모의 복잡한 시뮬레이션 모델을 검증 할 목적으로 분산 시뮬레이션 방법론이 있는데, 이들은 크게 동기적인 방법과 비동기적인 방법이 있다. 동기적 방식보다 빠른 수행을 위해 비동기적 방법은 전체 Time-order 순이 아닌 로컬 Time-order를 가진다. 그러나 비동기적 방식에는 분산된 시뮬레이터들 간의 전체 Time-order를 유지하기 위해 전 처리된 시뮬레이터 결과들을 저장하는데, Time-order 상으로 현재의 시뮬레이션 시간보다 과거의 사건이 왔을 때 그 이벤트를 처리해주어야 되기 때문이다. 이러한 비동기적 분산 시뮬레이션 방법론에서는 전체 Time-order를 유지하기 위해 과거의 Time-order를 가지는 이벤트가 왔을 때 rollback operation을 수행한다. 그러나 rollback operation은 분산 시뮬레이션 방법론에서 성능 장애요소 중 하나이다. 본 논문에서는 rollback operation을 최소할 할 수 있는 DEVS 모델 분배 방법을 제안한다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.101-108
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• 2004

The results of the study include a computerized system and a systematic Process model for risk management and analysis. This study analyzes the present status of risk management in the construction industry, and then suggests reasonable methods for improved risk management plans. This study defines risk management procedures as preparation, identification, analysis, response and management to manage potential risks In the construction project. The modules for computerizing this system consist of planning, construction, application of WBS (Work Breakdown Structure) and RBS (Risk Breakdown Structure), and risk analysis. The method logy for analyzing construction risk uses fuzzy theory, and the scope of developed system is focused to the contractors. The risk management system suggested in this study operates on the Internet, for providing contractors with a useful risk management tool by online system, with web-based menus that is helpful for practical application.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.3D
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• pp.469-480
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• 2006

The results of the study include a computerized system and a systematic process model for risk management and analysis. This study analyzes the present status of risk management in the construction industry, and then suggests reasonable methods for improved risk management plans. This study defines risk management procedures as preparation, identification, analysis, response and management to manage potential risks in the construction project. The modules for computerizing in this system consist of planning, construction, application of WBS (Work Breakdown Structure) and RBS (Risk Breakdown Structure), and risk analysis. The methodology for analyzing construction risk uses fuzzy theory, and the scope of developed system is focused to the contractors. The risk management system suggested in this study operates on the Internet, for providing contractors with a useful risk management tool by online system, with web-based menus that is helpful for practical application.

• Journal of Internet Computing and Services
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• v.9 no.5
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• pp.59-72
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• 2008

Computing systems in the modern era are expanding rapidly to include mobile-based businesses that make us of the various convergence distributed business process. This has lead to growing interest in the field of mobile embedded software development methodology, which has in turn lead to the proliferation of the embedded mobility. The use of CBD (Component Based Development) provides reusability, maintainability and portability, all of which are very important and focus issues to the business process. It also comes with the inherent productivity, quality and reliability of CBD. To make efficient use of CBD, though, clarified interface definitions for component integration are necessary. These definitions should be made up of collaborative hierarchical and horizontal architecture layers. Successful definitions should apply an effective framework made up of the architecture and process. In this paper, we describe an interface specification for small grained mobile embedded components(MEC) for the mobile embedded domain to meet maximum user requirements. We build and deploy the reconfigurable design patterns and components (in business domain categories) to make a component hierarchy and business logics for mobile embedded software. Proposed components specification plays a major role in development of the software for handling inconsistency in existing specification. It also includes plenty of specification information, using semantics and modeling based mechanisms to support business processes. We propose a development model of mobile embedded software using CBD for very complex and dynamic mobile business. We can apply it in a plug and play manner to develop the software. We verify that our framework supports very good productivity, quality and maintainability to meet the user's requirements in mobile business.

• Journal of Korea Technology Innovation Society
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• v.12 no.1
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• pp.189-211
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• 2009

The importance of searching the weak signal has been increasingly recognized to cope with rapidly changing circumstances as an environmental analysis technique. This study proposed the NEST process for the searching for the weak signal. The NEST (New & Emerging Signals of Trends) is a micro environmental analysis process based on both quantitative and qualitative method. For this, the weak signal Searching Board is developed and traditional methods as global monitoring, trend analysis, brainstorming and delphi method are implemented to NEST. The NEST process is consists of three stage modules; the global monitoring stage in search of seeds information related to the environmental change, the weak signal analysis stage using the weak signal Tracking Board, and the delphi valuation stage for objectifying the final result. The NEST provides the weak signal of the promising technology which can bring new paradigm and the Up-Coming Trends which can lead new trend in the future. These outputs can be used to select promising technology from firm level to national level. The NEST system can be effectively operated as well as in small group so that small and medium innovative firms can develop and execute their own NEST process individually.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.6D
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• pp.969-974
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• 2006

Labor shortages are a serious problem for Korea's construction industry. The problem is both quantitative and qualitative. There is a shortage in supply as due to a decrease in the influx of new labor, and existing workers are less productive as they age. The problem will only get worse as more and more major public projects are being planned. Options for increasing the labor supply are somewhat limited, and thus efforts need to be made to adopt new technologies that can improve the productivity and efficiency of field work and their processes. This paper introduces seven innovation technologies that have the best potential to increase productivity and thus reduce the burden of labor shortage problems. These include 1) Substitution by use of robotics and automation, 2) development and applications of Innovative materials to reduce on site field work, 3) increase in productivity through the implementation of Information Technology, 4) improved productivity through the application of modules, and prefabrication, 5) prevention of rework and redesign, 6) diversification of labor by integrating labor skills, and 7) improved productivity by standardizing site processes.