• Korean Journal of Construction Engineering and Management
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• v.17 no.3
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• pp.23-31
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• 2016

The domestic market of CM at Risk has not been activated yet. It was analyzed duo to the fact that construction owners didn't have confidence in CM at Risk, because of the concerns regarding CM firms reliability, service, specialty, system and feasibility. Therefore, this study analyzed the problems to find the reason for declines in orders through a business diagnosis based on the Business Model Canvas(BMC) and set up the direction of business model improvement with one on one expert interviews. Additionally, we suggested the sub-activities for the business model improvements of CM at Risk service that are divided into 9 building blocks. Through this method, we determined that we would need preceding innovation activities such as good communication with customers, reinforcement of subcontract and excellence in project operations to convert the successful practice and settlement of the CM business model based in BMC. It is expected that the business model suggested from this study would contribute to improvement of CM at Risk competition and the differentiation strategy when compared with other firms. Also, it would be used a basis data to develop CM at Risk business model in the future.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.478-482
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• 2006

The domestic enterprises in order to secure the freshness location of market from the international competition which is keen are propelling a price and a quality high position strategy steadily. It is put in competitive situation with the overseas enterprises and even from construction industry it follows in construction market opening and there is not another idea to the research the management strategies, directions and focus competitive elements of the enterprise against, what it sees consequently and to rise to the priority where the competitive power reinforcement of the enterprise is important, it becomes. Competitive power of like this enterprise for a reinforcement the technique which induces a big interest 6 Sigma is technique from the many companies. 6 sigma preceding researches of manufacturing and service industry the fact that it is accomplished with the object which will carry most. The research which relates with construction industry is staying to an introduction of 6 sigma the investigation phase, the actual introduction introduces and "S" construction there is not only a possibility against the application result of having a limit because it is applying. It is like that but like referring to a minute description for the international competitive power security which it follows in the change which market environment is sudden 6 sigma the introduction will judge, indispensability development of the logical propriety against hereupon and it will reach and it verifies the question investigation for to lead, 6 sigma of the construction companies it confirms the application possibility and presents the propulsion model as 6 sigma the fact that overcoming the limit characteristic of that introduction application as objective of sample research means it will do.

• Journal of the Korean Recycled Construction Resources Institute
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• v.12 no.1
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• pp.33-39
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• 2024

In this study, the basic properties of cement paste with varying replacement ratio of micro-silica and fumed silica were analyzed to determine the suitability of nanomaterials for use as concrete admixtures. Referring to the ultra-high strength mix, the fluidity of cement paste was evaluated according to the nanomaterial replacement rate and the compressive strength characteristics were compared and analyzed. The related properties of the reactive nanomaterials to the cement hydrate were analyzed using SEM and EDS to observe the microstructure and identify the components of the hydration product. The reactive nanomaterials used in this study had tap densities between 0.061 and 0.264 g/cm³, which were lower than SF. Micro silica exhibited excellent compressive strength properties with increasing replacement ratio, but fumed silica, unlike micro white, obtained excellent compressive strength at replacement ratio of 0.01~0.1 %. The same trend was observed in the hydration characterization.

• Korean Journal of Construction Engineering and Management
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• v.23 no.2
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• pp.54-64
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• 2022

Since the interest in big data is growing exponentially, various types of research and development in the field of big data have been conducted in the construction industry. Among various application areas, cost estimating can be a topic where the use of big data provides positive benefits. In order for firms to make efficient use of big data for estimating tasks, they need to establish a strategy based on the multifaceted analysis of internal and external environments. The objective of the study is to develop and propose a strategy of the use of big data for construction management(CM) firms' cost estimating tasks based on the SWOT analysis. Through the combined efforts of literature review, questionnaire survey, interviews and the SWOT analysis, the study suggests that CM firms need to maintain the current level of the receptive culture for the use of big data and expand incrementally information resources. It also proposes that they need to reinforce the weak areas including big data experts and practice infrastructure for improving the big data-based cost estimating.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.1D
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• pp.81-89
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• 2009

CM(Configuration Management) is a field of management that focuses on establishing and maintaining consistency of a product's performance and its functional and physical attributes with its requirements, design, and operational information throughout its life. Recently upcoming concept of CM, regardless of various definitions, consists of the organization and the process for value creation through project change management, value preservation by Risk, Project Management implementation by Change management. The CM provide a basis for, and a record of, the project's performance in meeting the scope, time, cost. Overseas international companies have already adopted the CM system and enjoyed the benefits arising from such systems. And the CM provides perspectives and insights applicable to all types of projects. This study presents the review on the current systems now in use at jobsites and known to be efficient, and the introduction and application of configuration systems now at big issue. Hereby indicates the connective system consisted of work process, change control and knowledge referring to the methods and actual cases as an effective promotion of CM.

• Korean Journal of Construction Engineering and Management
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• v.11 no.6
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• pp.100-110
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• 2010

The main roots of CM service contracts include existing customer repurchases and those made by new customers by existing ones. The study on customers and loyalty can be factors to strengthen CM's competitiveness. However, there have been little attempt to study customer satisfaction and customer loyalty. Construction Management (CM), the advanced construction management method, was introduced 15 years ago in the mid 1990's in the domestic market. The aim of this research is to build a model that can predict customer loyalty based on how much customers are satisfied with CM service. To measure customer satisfaction and loyalty, this research surveyed 135 decision-makers who have experienced CM services. Customer satisfaction was tested and analyzed according to different phases: planning, designing, procurement, construction, and post construction. Referral intention was tested based on NPS theory. Customer types were divided into detractors, passively satisfied and promoters according to the tested measurement and multinomial logistic regression between the satisfaction by construction phases and customer types. This research resulted to a model that can predict customer types: detractors, passively satisfied and promoters, which were determined according to satisfaction level. The initial planning phase also revealed which factor is most influential for a customer to become promoter. These results can be used to acquire customer loyalty by managing the satisfaction of customers through a project under an Internet-based environment. Such can provide the needed information in quickly exploring positive and negative word-of-mouth feedbacks.

• Journal of Convergence for Information Technology
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• v.10 no.9
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• pp.215-221
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• 2020

This study intends to evaluate the balance ability of Korean adults in their 20s and create balance indicators using digital equipment(FRA 510 S). The study participants participated in 50 men and women in their 20s without musculoskeletal and nervous system diseases. For data analysis, Repeated Measures ANOVA was used. As a result of the study, it was confirmed that the movement of the body weight was higher when the eyes were closed and the test was performed than when the eyes were opened on a flat floor and a balance pad(47cm×39cm×5.5cm). And there was no difference according to the gender of men and women. In a future study, it is considered that the balance ability of normal elderly people will be evaluated, and the balance index of normal adults in Korea will be created and applied to the evaluation of patients with impaired balance ability.

• Korean Journal of Construction Engineering and Management
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• v.23 no.6
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• pp.76-88
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• 2022

The death toll in the Korean construction industry accounts for more than 50% of all business deaths. This is the highest level among OECD countries, and the government has proposed various solutions to this, but has not seen any significant effect. In order to strengthen safety responsibilities and obligations to CEOs of companies in the blind spot of punishment, including those who have the greatest authority and influence in the construction industry, the Moon Jae In government strengthened various laws, including legislation of the Serious Accidents Punishment Act. However, at this point in time, half a year later, it is still questionable whether such punishment has been strengthened and the effectiveness of fragmentary measures has been exerted. This paper attempted to present legislative policy directions for the problems of the current system and future improvement measures to contribute to reducing significant accidents in the CM/supervision industry among the various subjects of the construction industry.

• Proceedings of the CALSEC Conference
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• 1997.11a
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• pp.113-126
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• 1997

현재의 기업간 비즈니스의 대상은 정차 대규모화되며, 범위도 지역적으로 넓은 지역에 분산되고 있다. 이러한 지리적 한계를 극복하기 위하여 현재 네트워크의 표준 사양이 되고 있는 인터넷/웹의 사용이 적극적으로 검토되고 있다. 그리고, 분산환경하에서의 응용 소프트웨어의 통합을 위하여 미들웨어로서 CORBA의 적용이 검토되고 있다. 본 연구에서는 컴퓨터 환경이 서로 상이하며 분산된 환경하에서의 정보관리 및 공유시스템에 대하여 CALS의 CITIS 개념을 사용하여 구현한다. 이 시스템은 다사용자간의 정보관리를 위한 DM(Document management) 엔진과 기업간 업무 프로세스의 진행에 따라 정보의 흐름과 사용자간의 업계 연계를 지원하며 정보의 유연한 전달을 지원하는 워크플로우 관리기(Workflow Management System), 사용자간의 정보 사용에 관한 이력을 관리하는 CM(Configuration Management) 관리기 및 분산환경하에서 다기업간에 수행되는 프로젝트를 관리하는 글로벌 프로젝트 관리기(Global Project Management)로 구성된다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1258-1261
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• 2015

재고관리 시스템이란 기업 활동에서 상품의 구입, 보유, 판매, 발송 등의 여러 원활한 활동을 하기 위해 상품의 흐름을 종합적으로 관리하는 시스템이다. 현재 많은 중소기업에서 바코드를 이용한 재고관리 시스템을 사용하고 있다. 바코드를 이용한 재고관리 시스템은 바코드의 인식거리가 50cm, 인식 속도가 대략 4초 정도 된다. 이러한 성능 때문에 입고 와 출고 부분에서 수작업으로 진행되어 많은 인력 소모가 되고 있다. 따라서 본 논문에서는 바코드에 비해 인식 거리, 인식 속도가 월등히 좋은 RFID 시스템을 이용하여 입고와 출고를 하고, 불필요한 인력 소모를 감소하여 효율적인 재고관리가 이루어지도록 연구하고자 한다.