• Journal of Construction Engineering and Project Management
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• v.1 no.3
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• pp.18-27
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• 2011

Although information communication technology (ICT) is long regard as very useful tool in today's construction engineering and project management environment, organizations must not only operate based upon its original setting, but also requires on-going observation, additional features and fine-tuning actions before the desirable outcome can be achieved. However, it is a very common phenomenon that organizations purchase the licensed "off-the-shelf-software" package and customize it to suit their own business need. Due to the incapability of such software and inefficient customization, the possible result is making that ICT tool not user-friendly and sometimes the whole system becomes obsolete. The purpose of this paper is to review and report those actions taken (between February 2006 and December 2010) by a construction organization to enhance the performance of its Enterprise Resource Planning (ERP) system launched in December 2002. Such actions include: improving data inputting method; removing the transition bottleneck; introducing crystallization function; revising the organization's "Delegation and Limits of Authority"; publishing the "League Table" amongst users; integrating the 3D Mode into the system and upgrading hardware. Whilst the ultimate goals of such system are well beyond the time limit of this research study, an obvious interim result, achieved by this case studied organization, was winning a landmark project worth US$500 million after the ERP system was functioned properly and effectively. Their experience and success becomes an exemplar which can be borrowed by those companies, from managerial perspectives and as a roadmap, planning to adopt information technology (IT) strategy and use ICT tool in the construction engineering and project management framework. Singapore, where public housing provisions have been a major concern of their citizens as the building stock gets older.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.142-144
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• 2012

소셜 미디어가 확산되고 사용자가 증가하면서, 사용자들은 소셜 미디어를 통해 의견을 공유한다. 소셜 미디어는 실시간 정보에 대한 전달이 빠르며 데이터를 수집, 분석할 수 있다. 오피니언 마이닝은 텍스트로부터 사용자의 의견이 포함된 패턴을 추출하여 특정 제품이나 서비스에 대한 의견의 긍정, 부정 표현의 정도를 측정한다. 본 논문에서는 오피니언 마이닝을 기반으로 소셜 미디어 데이터에서 기업의 제품, 서비스와 관련된 사용자의 의견을 분석하여 긍정, 부정인지를 판단한다. 그리고 부정 패턴의 빈도를 통해 기업의 위기 상황을 인지하며, 위기 대응을 위한 4단계의 위기관리 모델을 제시한다. 또한 소셜 미디어에서 기업의 위기관리 사례를 확인하고, 표본조사를 통하여 평가 및 분석을 수행한다. 이 모델을 이용하여 방대한 소셜 미디어 데이터에서 기업의 제품이나 서비스에 대한 부정적 의견을 초기에 감지하고, 체계적으로 대응 할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.455-458
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• 2008

기업의 전사적 비즈니스와 IT 환경의 통합 청사진을 보여주는 엔터프라이즈 아키텍처의 효율적인 시스템 적용을 위하여는 조직의 비즈니스, 정보, 응용시스템, 기술 기반구조의 연관관계와 미래모델을 시각적으로 사용자에게 보여주어야 한다. 기존 ITAMS 혹은 EAMS 라고 불리는 시스템에 아키텍처 툴을 이용하여 EA 의 모델정보를 퍼블리싱하여 시각화하였는데 시스템과 아키텍처 툴간의 플랫폼의 이질성으로 인하여 아키텍처정보를 그래픽화하여 변환하고 해당정보를 시스템에서 보여주는데 실시간 적용이 불가능 했을 뿐 아니라 사용자의 편의성이 원활하지 않았다. 이에 본 연구는 XML 기반의 SVG 그래픽 도구를 이용하여 아키텍처 작업을 가능하게 하고 SVG 정보의 자동 생성 및 웹기반 모델링 툴을 구현하여 시스템과 모델링 툴의 단일 레파지토리화를 통하여 데이터의 이원화를 해소하고 사용자 편의성을 증대하는 패턴을 구현한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.5
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• pp.85-90
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• 2015

Work environments within the firm with a concept of mobile office is growing divided into two sections. It's Wi-Fi FMC(Fixed Mobile Convergence) field Which are implemented in a telephone service available from existing fixed-line service in the center of the smart phones and the EMS(Enterprise Mobility Service) field to make people will be able to handle PC the center of the information system within an enterprise using a smart phone instead of terminal facility connects to a system in the workplace and external. This paper developed FMC controller to allow execution IMS(IP Multi-Media Subsystem) services to complement the issues of the FMC corporation, telephony service associated. The controller includes FMC automatic enrollment services, voice quality enhancement of the mobile phone, anywhere within the firm on his mobile phone calls can provide mobility and is also implemented FMC LCR function that use status information from mobile soft-phone within the IP-PBX.

• Management & Information Systems Review
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• v.12
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• pp.53-75
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• 2003

The Internet is flourishing and the World Wide Web is growing at an exponential rate. A fundamental concept of Intranet, the so-called second wave, was introduced only a few years ago. Intranets have been embraced by corporate users of information services and made substantial inroads in strategic vision documents and procurement practices. Business organizations have come to the conclusion that they require an extensive data repository in order to acquire a competitive advantage in a dynamically change market. This rich assortment of data must further be delivered and deliverable enterprise-wide in a secure and cost-efficient manner. Information technology(IT) has created the Intranet as a vitally important mechanism for the storage, dissemination, and even the analysis data. The present study is an attempt to develop a more through understanding of the potential and actual impact of the Intranet on organizational functions and activities. Expecially, it also consists of an effort to assess the impact of the Intranet on communication. The research also addresses the issue of how the Intranet affects communication and shapes or modifies business activities. The results of literature review and study revealed that middle managers believe that the extent of the Intranet use is significantly related to improvements in overall organizational functions and activities. While communication, decision-making, productivity, work collaboration, and business activities are all enhanced by Intranet use, communication appears to be most dramatically improved by Intranet use.

• Journal of the Korea Safety Management & Science
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• v.19 no.1
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• pp.181-189
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• 2017

The systematic management of technology infrastructure increasingly becomes critical as it represents the driving power for creating competitive advantage of nations and enterprises. In this sense, public facility and equipment, which is one major asset of technology infrastructure, should be managed effectively, systematically and efficiently to increase its overall equipment effectiveness. However, the manual and off-line communication was the unique way to communicate between the suppliers who provide facilities in the public sector and the customers who utilize the facilities in the industrial sector. This communication way caused invisibility of available usage time and increase of idle time, thereby decreasing the equipment effectiveness. This paper presents an web-based scheduling system that enables real-time collaboration and information sharing for increasing the equipment effectiveness. The designed system performs scheduling, facility management, order management and customer relationship management in an on-line platform, and carries out the processing and storing of relevant information in an integrated database. The paper includes a development approach to identify business process models and standardized system models by using object-modeling technique. The deliverable of the present work will contribute to increasing the equipment effectiveness by enhancing visibility, transparency and predictability by means of the integration with a legacy Enterprise Resource Planning.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1147-1150
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• 2012

Earned value management(EVM)는 프로젝트 진행 상태를 파악하기 위해 주로 비용과 일정 편차, 성과지표를 통합하여 분석하는 것으로 비용/원가 관리를 위해 발전되어 사용되어 왔다. ERP 프로젝트는 국내 솔루션 시장의 가장 높은 점유율을 차지하고 있지만, 수행에 대한 성과평가 및 일정예측 가능한 신뢰성 있는 Tool 은 알려지지 않고 있다. 본 연구에서는 ERP 프로젝트의 EVM 성과지표를 분석을 통해 ERP 프로젝트가 원가측면의 계획대비 수행 적합성이 높으며, 국내 ERP 프로젝트는 분석단계에서 일정 지연이 발생한다는 것을 발견하였다 향후 본 연구를 통해 EVM 성과 지표를 이용한 현재 시점의 프로젝트 상태를 점검하며, 향후 일정과 원가를 예측하여 성공적인 ERP 프로젝트 수행에 도움이 되고자 한다.

• Journal of information and communication convergence engineering
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• v.21 no.2
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• pp.117-129
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• 2023

High-utility itemset mining (HIUM) has emerged as a key data-mining paradigm for object-of-interest identification and recommendation systems that serve as frequent itemset identification tools, product or service recommendation systems, etc. Recently, it has gained widespread attention owing to its increasing role in business intelligence, top-N recommendation, and other enterprise solutions. Despite the increasing significance and the inability to provide swift and more accurate predictions, most at-hand solutions, including frequent itemset mining, HUIM, and high average- and fast high-utility itemset mining, are limited to coping with real-time enterprise demands. Moreover, complex computations and high memory exhaustion limit their scalability as enterprise solutions. To address these limitations, this study proposes a model to extract high-utility frequent closed itemsets based on an improved cumulative summary list structure (CSLFC-HUIM) to reduce an optimal set of candidate items in the search space. Moreover, it employs the lift score as the minimum threshold, called the cumulative utility threshold, to prune the search space optimal set of itemsets in a nested-list structure that improves computational time, costs, and memory exhaustion. Simulations over different datasets revealed that the proposed CSLFC-HUIM model outperforms other existing methods, such as closed- and frequent closed-HUIM variants, in terms of execution time and memory consumption, making it suitable for different mined items and allied intelligence of business goals.

• Journal of information and communication convergence engineering
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• v.22 no.1
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• pp.44-55
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• 2024

High-utility itemset mining (HUIM) is a dominant technology that enables enterprises to make real-time decisions, including supply chain management, customer segmentation, and business analytics. However, classical support value-driven Apriori solutions are confined and unable to meet real-time enterprise demands, especially for large amounts of input data. This study introduces a groundbreaking model for top-N high utility itemset mining in real-time enterprise applications. Unlike traditional Apriori-based solutions, the proposed convolutional sequential embedding metrics-driven cosine-similarity-based multilayer perception learning model leverages global and contextual features, including semantic attributes, for enhanced top-N recommendations over sequential transactions. The MATLAB-based simulations of the model on diverse datasets, demonstrated an impressive precision (0.5632), mean absolute error (MAE) (0.7610), hit rate (HR)@K (0.5720), and normalized discounted cumulative gain (NDCG)@K (0.4268). The average MAE across different datasets and latent dimensions was 0.608. Additionally, the model achieved remarkable cumulative accuracy and precision of 97.94% and 97.04% in performance, respectively, surpassing existing state-of-the-art models. This affirms the robustness and effectiveness of the proposed model in real-time enterprise scenarios.

• The KIPS Transactions:PartC
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• v.10C no.1
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• pp.1-10
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• 2003

In this paper, we propose a secure communication framework for interaction and information sharing between a server and agents in DS-NVSA(Detection System of Network Vulnerability Scan Attacks) proposed in〔1〕. For the scalability and interoperability with other detection systems, we design the proposed IDMEF and IAP that have been drafted by IDWG. We adapt IDMEF and IAP to the proposed framework and provide SKTLS(Symmetric Key based Transport Layer Security Protocol) for the network environment that cannot afford to support public-key infrastructure. Our framework provides the reusability of heterogeneous intrusion detection systems and enables the scope of intrusion detection to be extended. Also it can be used as a framework for ESM(Enterprise Security Management) system.