• Journal of Korea Society of Industrial Information Systems
• /
• v.15 no.4
• /
• pp.7-15
• /
• 2010

This study proposes a rad o resource management scheme to maximize the performance of the LTE(Long Term Evolution) uplink, using SC-FDMA(Single Carrier-Frequency Division Multiple Access). Rather than the single-cell SC-FDMA system the existing studies are mainly concerning, this study focuses on multi-cell system which needs considering the interaction among cells. Radio resource management is divided into two phases, planning and operation phases. The former is for the master eNB(e-NodeB) to allocate RBs(radio bearer) to eNB, the latter for eNB to assign RBs to the mobiles in the cell. For each phase, an optimization model and greedy algorithm are proposed. Optimization models aim to maximize the system performance while satisfying the constraints for both QoS and RB continuity. The greedy algorithms, like generic ones, move from a solution to a neighboring one having the best objective value among neighboring ones. From the numerous numerical experiments, the performance and characteristics of the algorithms are analyzed. This study is expected to play a volunteering role in radio resource management for the multi-cell SC-FDMA system.

• Construction Engineering and Management
• /
• v.2 no.1 s.5
• /
• pp.15-17
• /
• 2001

• Knowledge Management Research
• /
• v.3 no.1
• /
• pp.93-106
• /
• 2002

Knowledge management is a recent area in business administration that deals with how to leverage knowledge as a key asset and resource in modern organizations. Also, Knowledge systems are the single most important industrial and commercial offspring of the discipline called artificial intelligence. A Case Based Reasoning(CBR) system solves new problems by recalling adapting previous solutions. This paper presents the results of a recent empirical study. Furthermore this study proposes a CBR Methodology designed to manage knowledge of Hana company under e-business.

• Journal of Korean Library and Information Science Society
• /
• v.47 no.4
• /
• pp.167-190
• /
• 2016

This study aims to analyze the current status of e-book management and services in academic libraries and identify related issues in the provision of the services. To do that, it performed case studies with A and B university libraries. E-book usage statistics was collected from each library and interviews were conducted with librarians responsible for e-book management and services. The interviews included questions regarding obstacles to e-book management and services and current issues as well as budget and acquisition, access and catalogues, usage, and marketing for e-books. The results show that in both libraries, the usage of e-books is low compared with that of printed books and the usage of e-books has declined recently. This is because of lack of new books with shortage of budget. Also, the most important issue surrounding e-book services is academic library evaluation, enacted by Academic Library Promotion Act in 2015. This study discussed how the criteria for academic library evaluation influence the way the academic libraries acquire and manage e-books.

• Journal of Distribution Science
• /
• v.19 no.7
• /
• pp.113-121
• /
• 2021

Purpose: Technology induces the virtual distribution channel to exist, especially for booking a room online. This situation, indeed, provides an alternative for the customers to book based on their budget through digital platforms. One platform offering competitive prices is virtual hotel operators, such as Airbnb, OYO, RedDoorz, and Airy Rooms. Preferably, after using their platform, the user should be satisfied and loyal. Hence, this investigation aims to prove some associations. The first is between e-satisfaction and e-loyalty. The second is between website quality and e-satisfaction. The final is between website quality and e-loyalty. Research design, data, and methodology: This study is quantitatively designed with the sample of 350 users of the virtual hotel operator applications in Bandar Lampung: Airbnb, OYO, RedDoorz, and Airy, as the samples. Therefore, by denoting this sample size, the structural equation model based on covariance is utilized to examine the three hypotheses proposed. Also, to get the responses, this study uses a survey through a questionnaire. Result: This investigation demonstrates the positive relationship between e-satisfaction and e-loyalty. Additionally, website quality positively associates with e-satisfaction and e-loyalty. Conclusion: The virtual hotel operators must have the superiority on their website-based application to update the information based on the room availability and price, ensure online transaction safety, and facilitate its utilization to maintain long-term satisfaction and loyalty virtually.

• The Journal of Society for e-Business Studies
• /
• v.8 no.3
• /
• pp.87-105
• /
• 2003

Business Process Management (BPM) is an emerging trend of managing business process life cycles and integrating heterogeneous systems . Recently, BPM is considered as an essential element for automation of complex business processes involving many companies, particularly for those in an e-Business environment. In such an environment, it is very important for each business partner to trace history of resources. However, it has been a difficult problem for Workflow Management Systems(WFMSs) to support management of resource changes because of limited storage, complex process structure, and absence of formal change model. In this paper. a new framework is proposed, which can support change management for documents, one of core resources of business process. Under a traditional WFMSs framework, all workflow components belong to either build-time or run-time function, and executions of workflow processes are performed by the two functions . To manage changes of documents while process executing. a new framework with additional component modules are required. A version control method is introduced for the purpose of managing document changes. The proposed method includes five models for document structure, process structure, association between process and document, version management, and efficient version storage. A prototype system is developed to demonstrate the effectiveness of the proposed models.

• Current Research on Agriculture and Life Sciences
• /
• v.29
• /
• pp.63-74
• /
• 2011

The purpose of this study is a classification of farm typology and an analysis of characteristic e-commerce type of farm enterprises. The classification of sample farm enterprises thus results in six distinctively agribusiness type. The six identified types can be characteristic as follows: production type, processing type and distribution type, e-commerce type, export-agricultural type, amenity-tourism type. This article attempted to come up with workable strategies to solve these problems affecting e-commerce type farm enterprises. The main results this paper are as follows: 1) to make organization of e-commerce type farm enterprises to accomplish business goals 2) to find out solution for urgent problems and subjects of farm management 3) to practice profitable business model for e-commerce type. E-commerce type farm enterprises needs are not only technology transference but also farm management.

• Korean Journal of Construction Engineering and Management
• /
• v.3 no.1 s.9
• /
• pp.65-73
• /
• 2002

By its nature, software part of the construction industry such as engineering and so forth has been kept secret to outside, as it determines a company$^{\circ}{\phi}s$ competitiveness. As a result, construction field knowledge usually disappears with the end of a project. The objective of this study is to develop the knowledge management (BM) learning model tuned in to construction area in order to manage project-related knowledge and promote the knowledge management. This study presented a learning model for knowledge management in the construction field, with the aim to integrate a series of processes. The model is composed of EIP, EDMS, knowledge and failure cases management, CoP and e-Learning.

• Information Systems Review
• /
• v.11 no.1
• /
• pp.133-144
• /
• 2009

Today, eCRM has been attention as an enterprise information system that systematically manages and utilizes the eCRM customer information visiting Internet home page. On this paper, the case study of N company Korea's leading manufacturers of the dairy industry is been application research in the practices of using optimization tools for analysis of customer information and marketing activities by the introduction of eCRM and doing weblogs analysis. This research is a case study on an introduction and the use of eCRM solutions in dairy industry company. In addition, of the scope and effectiveness for use introduced eCRM explain.

• Knowledge Management Research
• /
• v.9 no.2
• /
• pp.169-191
• /
• 2008

Information technology instruments arc being rampantly used for knowledge management in companies. IT is used as an interplay tool to enhance the flow of knowledge and information between people. KMS, especially, supports the knowledge management process including sharing, creating, and using of knowledge within a company, and maximizes the value of knowledge resources within an organization. The purpose of this paper is to understand how IT is changing the knowledge management activity. through various examples based on exploratory research from MANDO, the Korean automotive parts manufacturer, and POSCO, the global leading steelmaker. The result shows that IT boosts communication skills, thus creates a mutual relationship outcome. In the same context, the process of knowledge conversion by Nonaka's SECI model simplifies to an Externalization-Internalization process. This process accelerates the birth of explicit knowledge and Socialization, supplements the Limitations of the creation of knowledge in the E-I cycle. The E of knowledge simultaneously promotes the I, and eventually brings an advanced learning skill. IT aids the E of knowledge and furthermore, I and E activity, through the knowledge sharing, brings vitality into an organization. The interplay stage for knowledge activity is to be reorganized to a cyber ba. Furthermore, IT will galvanize the formation of core knowledge through systemized acquisition, management of core knowledge and standardization of work.