• Korea Journal of Hospital Management
• /
• v.19 no.3
• /
• pp.43-52
• /
• 2014

We empirically show that the effect of mobile EMR's technological characters on system qualities and user satisfaction. For the study, the relationship among technological characters of mobile, EMR's system quality, EMR's information quality, and user satisfaction were modelled and validated with hypotheses. An empirical test was performed for a path model using structural equation modeling on samples of 148 nurses in hospitals from various size and region. This study find that, for the overall sample, there are positive relationships among the technological characters of mobile, EMR's system quality, EMR's information quality, and user satisfaction. And the results support that mobile is an effective method for EMR. Findings of this study have several theoretical and practical implications as follows : First, this study empirically tested the relationship among technological characters of mobile, EMR's system quality, EMR's information quality. Second, the study shows that the technological characters of mobile should be considered for advance of EMR system's quality in mobile environment. And lastly, this study can practically suggest mobile healthcare information system for process effectiveness.

• The Transactions of the Korea Information Processing Society
• /
• v.5 no.4
• /
• pp.1005-1013
• /
• 1998

In this paper, we describe technologies of Intranet administrator and user application used in the PEC(Protocol Engineering Center) Office Intranet system which provides platform independent application framework using Internet/Intranet standard technologies for distribution of Web documents and real-time multimedia information. The PEC Office is composed of administrator applications to support environments for administration of all applications including group/user add, update, and delete facilities and construction of user directory and user applications to support schedule sharing, virtual library, job report, output management, budget management, and real-time audio/video broadcasting services. These applications allow differentiation and customization services according to department and title employed per users.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.6 no.3
• /
• pp.91-101
• /
• 2010

By using the U-Healthcare environment, it is possible to receive the health care services anywhere anytime. However, since the user's personal information can be easily exposed in the U-Healthcare environment, it is necessary to strengthen the security system. This thesis proposes the technique which can be used to protect the personal medical records at hospital safely, in order to avoid the exposure of the user's personal information which can occur due to the frequent usage of the electronic chart according to the computerization process of medical records. In the proposed system, the following two strategies are used: i) In order to reduce the amount of the system load, it is necessary to apply the partial encryption process for electronic charts. ii) Regarding the user's authentication process for each patient, the authentication number for each electronic chart, which is in the encrypted form, is transmitted through the patient's mobile device by the National Health Insurance Corporation, when the patient register his or her application at hospital. Regarding the modern health care services, it is important to protect the user's personal information. The proposed technique will be an important method of protecting the user's information.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2005.05a
• /
• pp.629-638
• /
• 2005

In this paper, we consider two issues in collaborative filtering, which are closely related with the number of ratings of a user. First issue is the relationship between the number of ratings of a user and the performance of collaborative filtering. The relationship is investigated with two datasets, EachMovie and Movielens datasets. The number of ratings of a user is critical when the number of ratings is small, but after the number is over a certain threshold, its influence on recommendation performance becomes smaller. We also provide an explanation on the relationship between the number of ratings of a user and the performance in terms of neighborhood formations in collaborative filtering. The second issue is how to select an initial product list for new users for gaining user responses. We suggest and analyze 14 selection strategies which include popularity, favorite, clustering, genre, and entropy methods. Popularity methods are adequate for getting higher number of ratings from users, and favorite methods are good for higher average preference ratings of users.

• Journal of Korean Society for Quality Management
• /
• v.40 no.1
• /
• pp.60-72
• /
• 2012

This research conducted a survey targeting mobile SNS users in order to see whether mobile SNS attribute( accessibility, usefulness, newness, connectivity) through the medium of information share and relationship formation had a positive influence on user satisfaction. The results of the analysis showed that usefulness and accessibility had a significant influence on information share, while accessibility and connectivity had a significant influence on relationship formation. Information share and relationship formation both had a significant influence on user satisfaction. Based on this research, an angle of approach different from the business transactions and information services offered in existing mobile networks is necessary when corporations provide SNS through mobiles. When considering that the most important part in the use of mobile SNS is the social component, this can be actively used for the development and marketing of SNS services. Therefore, the SNS provider must focus its efforts on finding a method to stimulate user sensibilities in order to increase customer satisfaction and draw out continuous usage.

• Korean Management Science Review
• /
• v.25 no.1
• /
• pp.1-9
• /
• 2008

This paper investigates the R&D project portfolio selection problem. Despite its importance and impact on real world projects, there exist few practical techniques that help construct an non-dominated portfolio for a decision makers satisfaction. One of the difficulties constructing the portfolio is that such project portfolio problem is, in nature, a multi-attribute decision-making problem, which is an NP-hard class problem. This paper investigates the R&D project portfolio selection problem. Despite its importance and impact on real world projects, there exist few practical techniques that help construct an non-dominated portfolio for a decision makers satisfaction. One of the difficulties constructing the portfolio is that such project portfolio problem is, in nature, a multi-attribute decision-making problem, which is an NP-hard class problem. In order to obtain the non-dominated portfolio that a decision maker or a user is satisfied with, we devise a user-interface algorithm, in that the user provides the maximum/minimum input values for each project attribute. Then the system searches the non-dominated portfolio that satisfies all the given constraints if such a portfolio exists. The process that the user adjusts the maximum/minimum values on the basis of the portfolio found continues repeatedly until the user is optimally satisfied with. We illustrate the algorithm proposed, and the computational results show the efficacy of our procedure.

• Journal of the Korean Society for information Management
• /
• v.27 no.1
• /
• pp.61-77
• /
• 2010

Blogs are now one of the major information resources on the web. The purpose of this study is to enhance the performance of blog retrieval by means of user assigned tags and trackback information. To this end, retrieval experiments were performed with a dataset of 4,908 blog pages together with their associated trackback URLs. In the experiments, text terms, user tags, and network centrality values based on trackbacks were variously combined as retrieval features. The experimental results showed that employing user tags and network centrality values as retrieval features in addition to text words could improve the performance of blog retrieval.

• Journal of the Korean Society for information Management
• /
• v.28 no.4
• /
• pp.85-97
• /
• 2011

The purpose of this study was to develop a methodology of user participation evaluation of a scholarly information site in the field of science and technology and to enhance the site by applying a set of testing protocols. Experiments were conducted in a laboratory setting. Data from multiple sources, including eyetracking, search logs and post surveys, were collected and analyzed quantitatively. Based on the results of eyetracking, the contents and images were reorganized after removing unessential elements in the site. The resulting data from the search logs showed that the users were able to finish the tasks more quickly with the revised user interface. The results of the data analysis of post surveys indicated an overall improvement in the revised website compared to the original one.

• Journal of the Korean Society for information Management
• /
• v.25 no.1
• /
• pp.43-59
• /
• 2008

This study investigated the main user types of the reading programs which are provided by sixty-two public libraries during September, "the Month of Reading," in seven metropolitan cities, Seoul. Pusan, Daegu, Incheon, Daejeon, Gwangju and Ulsan. For the analysis, the data are collected from 622 programs of "the Month of Reading." The content analysis method was used to analyze data and find meanings from it. The findings show, there are a little differences in the priority order of the main user types among the seven metropolitan cities, however, the children and all ages of the public libraries in seven metropolitan cities are identified as the main user types of the libraries.

• Journal of the Korean Society for information Management
• /
• v.26 no.4
• /
• pp.81-92
• /
• 2009

This paper proposes a technique for improving performance using word senses and user feedback in web information retrieval, compared with the retrieval based on ambiguous user query and index. Disambiguation using query word senses can eliminating the irrelevant pages from the search result. According to semantic categories of nouns which are used as index for retrieval, we build the word sense knowledge-base and categorize the web pages. It can improve the precision of retrieval system with user feedback deciding the query sense and information seeking behavior to pages.