• Proceedings of the Korean Society for Quality Management Conference
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• 2010.04a
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• pp.274-280
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• 2010

Through the process of HALT (Highly Accelerated Life Test) between 2003 to 2008, we are about to research on the design method for minimum test for all error modes that are classified and analyzed to obtain more margin able product.

• Journal of the Korea Safety Management & Science
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• v.8 no.2
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• pp.1-12
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• 2006

The purpose of this research is to understand the role of safety climate in the safety management system. Based on the 121 responses from facilities got Occupational Health & Safety Assessment Series (OHSAS) 18000 certification, the results of statistic analysis show that there is significant relationship between safety climate, work attitudes and Organizational Citizenship Behaviors (OCB). The most important finding is the relationship between safety climate and organizational commitment will mediate the relationship.

• Korean Journal of Construction Engineering and Management
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• v.20 no.4
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• pp.13-21
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• 2019

The purpose of this study is to suggest an Improvement Model of defect information management system. The improvement model adapts methods for the residents to input defect information correctly and share to defect information with construction company. The adapted research method is review for existing defect information management system and suggested for data flow diagram of improvement model. The results of this study are as follows: The basic design of the information input window of the defect information management system for connecting with big data was made. And 5 point scale was applied to evaluate the convenience, simplicity, accuracy, necessity, and usability of the improvement model. It is evaluated that the economic effect caused by using the improvement model is saved by about 151 million KRW compared to the existing method. The Improvement model is used utilize big data in correct defect management and decision making.

• Journal of the Korean Operations Research and Management Science Society
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• v.22 no.2
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• pp.1-12
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• 1997

We consider an M/M/2 queue with two servers placed in series. System performance measures that we present in closed expressions are the first and the second moments for the system size, the queue walting time and the sojourn time. We also present an algorithm for computing the queue waiting time distribution function based on the randomization method. As an application, we analyze the double tollbooth system and compare its performance with the conventional single tollbooth system's.

• Proceedings of the Korean Society for Quality Management Conference
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• 2004.04a
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• pp.503-506
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• 2004

Evolutionary operation is useful to improve on-line full-scale manufacturing processes by systematically changing the levels of the process variables without jeopardizing the product. This paper presents a system design for an evolutionary operation software called 'evolutionary optimizer'. The system design is based primarily on data flow diagram. Evolutionary optimizer consists of four modules: factorial design module, many variables module, mixture Production module, and mean/dispersion module.

• Proceedings of the KIEE Conference
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• 2005.07b
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• pp.1657-1659
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• 2005

Test track of the Light Rail Transit(LRT system was developed and organically combined with technologies of power supply system, signal communication system and track structure The purpose of the test track is a acquiring of reliability and stability through a sufficient performance test Therefore, this paper draws up ail management plans for tests of the LRT system

• Journal of the Korean Society for information Management
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• v.26 no.1
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• pp.371-387
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• 2009

National Institute of Korean History(NIKH) is the major collecting organization of manuscripts, records for historical research and develops a Collecting Manuscripts Management System. Manuscripts description conforms to records management system, such as provenance information and hierarchical catalog records and business process observes library management system because it is not the public records. Goal system is integrated system containing both. This study proposes development of Collecting Historical Manuscripts Management System in the NIKH and the aspects to achieve successful system operation.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2007.04a
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• pp.301-306
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• 2007

Because the cost of road management is increasing proportional to road construction, there are needs to build general and systematic road management system. To solving such problems, Ministry of Construction and Transportation started research and development of Highway Management System(HMS), and established a foundation for systematic road management system. But, the implementation of HMS has some limitations because it is just converting roads of physical space to roads of electronic space and managing roads of electronic space. Although HMS offers many conveniences compared to old system which was based hard-copy and paper maps or unit operations, it can not overcome the problem of inefficency of road management due to the separation of operation between outer field and inner office. Therefore, to overcome such inefficency, this study focused on Road Disaster Management System development based on Ubiquotous.

• Korean Management Science Review
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• v.28 no.2
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• pp.53-62
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• 2011

The objective of this paper is to propose a Binary Particle Swarm Optimization(BPSO) for design of reporting cell management system. The assignment of cells to reporting or non-reporting cells is an NP-complete problem having an exponential complexity in the Reporting Cell Location Management(RCLM) system. The number of reporting cells and which cell must be reporting cell should be determined to balance the registration(location update) and search(paging) operations to minimize the cost of RCLM system. Experimental results demonstrate that BPSO is an effective and competitive approach in fairly satisfactory results with respect to solution quality and execution time for the optimal design of location management system.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.588-592
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• 2006

Information trend in whole domestic industries can not be a exception for construction industry either. However, Construction companies applying quality information management system(QIMS) through practical use of internet is very limited. Consequently, this research finds the established sample of quality information management system(QIMS) of H-construction company out, and the quality is established to the practical use of the system to be like the this. therefore, the construction industry wished to become opportunity that construction industry competitive power is recognized cosmopolitanly to quality management system(QMS).