• Journal of Korean Society for Quality Management
• /
• v.29 no.4
• /
• pp.116-132
• /
• 2001

The world wide web has been growing rapidly. Due to the development, many companies are using the e-commerce through the web as an another tool for the their deal with customers. The internet is utilized as the new distribution business and channel for the most companies. This innovative changes made many people to purchase products through the web. However, there are a lot of problems during the process of supply chain channels. This research is about the impact of service quality on the customer satisfaction in the business-to-consumer(B2C) e-commerce. It was performed by utilizing the methodology for measuring the degree of service quality which has been adopted in the service quality research area. The quality of service is made up of six dimensions(factors): reliability, responsiveness, assurance, empathy, tangible, and convenience. Therefore, we studied the influence of these six factors upon the customer satisfaction, and the results will be summarized.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
• /
• 2002.08a
• /
• pp.191-197
• /
• 2002

The prediction of the dynamic behaviors of buoyant water discharges into a large volume of water bodies, the flows of water accompanying the density differences due to temperature differences and sometimes also to salinity differences, have attracted great concern over several decades. Heated water surface discharges from power plants and freshwater discharges in estuaries are typical examples of the buoyant flows. (omitted)

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.4 no.1
• /
• pp.89-104
• /
• 2008

The aim of this study is to analyze the distribution structure of exclusive digital muti-media broadcasting's contents. This study takes into distribution wether exclusive contents create an additional window being serviced to other media. And it investigates how the contents work in window through analysis of programming table and interview with programming editors of each DMB service company. The window effect is a same notion to the one source multi use. In the film industry, window means a movie distribution that a film can be on one after the other starting the cinema, DVD, local cable channel, and terrestrial television. The key point of this paper is how to new media, DMB, creates its additional window and changes the existing window structure.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.16 no.1
• /
• pp.11-19
• /
• 2020

IoT has been consistently used in various fields such as smart home, wearables, and healthcare. Since IoT devices are small terminals, relatively simple wireless communication protocols such as IEEE 802.15.4 and ISO 18000 series are used. In this paper, we designed the 802.15.4q 2.4 GHz TASK physical layer. Physical protocol data unit of TASK supports bit-level interleaving and shortened BCH encoding. It is spread by unique ternary sequences. There are four spreading factors to choose the data rate according to the communication channel environment. The TASK physical layer was designed using verilog-HDL and verified through the loop-back test of the transceiver. The designed TASK physical layer was implemented in a fpga and tested using MAXIM RFICs. The PER was about 0% at 10 dB SNR. It is expected to be used in small, low power IoT applications.

• Journal of Internet Computing and Services
• /
• v.9 no.1
• /
• pp.69-78
• /
• 2008

Finance, Securities, banking system provides information through Internet, DM SMS, IVR, E-mail and FAX for customer. Customers can use multi channel. Enterprise requires Host transaction and transparency for DB processing, This paper provides two contributions to the study. First, we discuss Server of Fire insurance (finance, securities and capital, bank system) in Enterprise. Second, we present Real time monitoring system for customer transparency. Finally, we design and implement the proposed system. These techniques can be efficiently supported in CRM(Customer Relationship Management).

• Management & Information Systems Review
• /
• v.21
• /
• pp.77-98
• /
• 2007

This thesis is related with Anti-dumping law about Korea's export in EU. Indeed, Korea' export to EU market is how related to EU's Anti-dumping law this study was intended to reveal from a legal point of view. For this purpose from EU's Anti-dumping law's institution at present to application historical channel was examined and is showed Anti-dumping law's application procedure briefly. Throughout this study what we could get are EU's Anti-dumping law based on a statute, EU's Anti-dumping law's institution background and the law's application procedure & effects.

• Asia pacific journal of information systems
• /
• v.8 no.3
• /
• pp.165-180
• /
• 1998

In this study, we analysed the current situation of Internet-based insurance services which can provide a non-traditional and cost effective communication channel between the customers and insurance companies. The service of Internet-based cyber-insurance extends from mere advertisement to on-line contracts through planning simulations and, furthermore, to customer monitoring. This cyber-insurance is the demand of the times and is not to be overlooked-by the Korean insurance companies which are suffering from accumulated loss and are facing severe economic depression. We performed a comparative analysis between the domestic cyber-insurance service and pioneers'. Also, we suggested future possibilities of cyber-insurance services, presenting an architecture for the construction of a cyber-insurance management module within the meta financial investment system.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.7 no.3
• /
• pp.75-83
• /
• 2011

Cognitive radio (CR) technology is to maximize the spectrum utilization by allocating the unused spectrums to the unlicensed users. This technology enables the sharing of channels among secondary (unlicensed) and primary (licensed) users on a non-interference basis after sensing the vacant channel and as a result, it is possible to harness wireless frequency more efficiently. To enhance the accuracy of sensing, RDSS was suggested. It is a fusion mechanism based on the reputation of sensing nodes and WSPRT (weighted sequential probability ratio test). However, in RDSS, the execution number of WSPRT could increase according to the order of inputted sensing values, and the fast defense against the forged values is difficult. In this paper, we propose a transaction signing-based authentication scheme for secure distributed spectrum sensing to response the forged values. The validity of proposed scheme is provided by BAN logic.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.10 no.1
• /
• pp.147-155
• /
• 2014

The rapid increase in the penetration rate and diverse utility of smart devices opens an opportunity for a development in creating a user-oriented ubiquitous system. And it allows audiences to deploy the exhibition-helping contents regardless of the restriction of place and time with using the smart devices of audience themselves. Also it needs to build a mobile web-based portal system for the related services. To do this, Firstly, it needs the corresponding strategies on a smartphone-based environment such as technical competence, systematic preparation of exhibition with compatible mobile contents, and a compatible channel for interactivity. Secondly, it needs the differentiation of exhibition guide with the existing system: an adoption of augmented reality, panoramic technology and simulation effect aiming for an improvement in a sense of immersion and reality for audience, and building up additional contents with a diversity of formats of image, sound, and video for customer satisfaction.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.10 no.1
• /
• pp.39-45
• /
• 2014

This paper proposes an architecture of a sensor network for gathering data under a powerful beam cluster tree architecture. This architecture is used when there is a need to gather data from sensor node where there is no sink node connected to an existing network, or it is required to get a series of data specific to an event or time. The transmit distance of the beam signal is longer than that of the usual sensor node. The nodes of the network make a tree network when receiving a beam message transmitting from the powerful root node. All sensor nodes in a sink tree network synchronize to the superframe and know exactly the sequence value of the current superframe. When there is data to send to the sink node, the sensor node sends data at the corresponding allocated channel. Data sending schemes under the guaranteed time slot are tested and the delay and jitter performance is explained.