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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korea Society of Digital Industry and Information Management
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The Korea Society of Digital Industry & Information Management
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Volume & Issues
Volume 11, Issue 4 - Dec 2015
Volume 11, Issue 3 - Sep 2015
Volume 11, Issue 2 - Jun 2015
Volume 11, Issue 1 - Mar 2015
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Design and Implementation of code generator to remove the parameter boundary failure in the unit test
Park, Youngjo ; Bang, Hyeja ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 1~10
DOI : 10.17662/ksdim.2015.11.2.001
As programs get more complicated and they are developed by various hands, the possibility that there are program bugs in the code has been increasing. And developers usually run unit tests to find these problems in the code. Besides, the developers are at the pain of getting stability of the code when they have to modify a code very often for clients requirements. In the methodlogy of TDD(Test Driven Development), developers write a unit test code first, and then write a program code for passing the unit test. The unit test must include the boundary condition test the reason why the possibility of occurring the bugs is very high. When failed to pass the test because of the value of a function is incorrect, not existed, out of the range or not matched etc, the program code will return the error code or occur the exception. In the document, the system is designed and implemented in order to insert the generated code automatically or suggest it to the developer, when the boundary condition test is failed. In conclusion, it is possible that the developer will get the code stability by searching the code and checking the code to be omitted automatically through this system.
A Study of the Improvement Method of I-pin Mass Illegal Issue Accident
Lee, Younggyo ; Ahn, Jeonghee ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 11~22
DOI : 10.17662/ksdim.2015.11.2.011
The almost of Web page has been gathered the personal information(Korean resident registration number, name, cell-phone number, home telephone number, E-mail address, home address, etc.) using the membership and log-in. The all most user of Web page are concerned for gathering of the personal information. I-pin is the alternative means of resident registration number and has been used during the last ten-year period in the internet. The accident of I-pin mass illegal issue was happened by hacker at February, 2015. In this paper, we analysis the problems of I-pin system about I-pin mass illegal issue accident and propose a improvement method of it. First, I-pin issue must be processed by the off-line of face certification in spite of user`s inconvenience. Second, I-pin use must be made up through second certification of password or OTP. The third, the notification of I-pin use must be sent to the user by the text messaging service of cell-phone or the E-mail. The forth, I-pin must be used an alternative means of Korean resident registration number in Internet. The methods can reduce the problems of I-pin system.
A Study of Preventing Social Engineering Attack on Smartphone with Using NFC
Suh, Jangwon ; Lee, Eunyoung ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 23~35
DOI : 10.17662/ksdim.2015.11.2.023
When people stands near someone`s mobile device, it can easily be seen by others. To rephrase this, attackers use human psychology to earn personal information or credit information or other. People are exposed by social engineering attacks. It is certain that we need more than just recommendation for the security to avoid social engineering attacks. This is why I proposed this paper. In this paper, I proposed an authentication technique using NFC and Hash function to stand against social engineering attack. Proposed technique result is showing that it could prevent shoulder surfing, touch event information, spyware attack using screen capture and smudge attack which relies on detecting the oily smudges left behind by user`s fingers. Besides smart phone, IPad, Galaxy tab, Galaxy note and more mobile devices has released and releasing. And also, these mobile devices usage rate is increasing widely. We need to attend these matters and study in depth.
A Study on Location-based Routing Technique for Improving the Performance of P2P in MANET
Yang, Hwanseok ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 37~45
DOI : 10.17662/ksdim.2015.11.2.037
The technology development of MANET and dissemination of P2P services has been made very widely. In particular, the development of many application services for the integration of P2P services in MANET has been made actively. P2P networks are commonly used because of the advantages of efficient use of network bandwidth and rapid information exchange. In P2P network, the infrastructure managing each node in the middle does not exist and each node is a structure playing a role as the sender and receiver. Such a structure is very similar to the structure of the MANET. However, it is difficult to provide reliable P2P service due to the high mobility of mobile nodes. In this paper, we propose location-based routing technique in order to provide efficient file sharing and management between nodes. GMN managing the group is elected after network is configured to the area of a certain size. Each node is assigned an identifier of 12 bit dynamically to provide routing which uses location information to the identifier. ZGT is managed in the GMN in order to provide management of group nodes and distributed cache information. The distributed cache technique is applied to provide a rapid retrieval of the sharing files in the each node. The excellent performance of the proposed technique was confirmed through experiments.
A Research on Mobile Malware Model propagated Update Attacks
Ju, Seunghwan ; Seo, Heesuk ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 47~54
DOI : 10.17662/ksdim.2015.11.2.047
The popularity and adoption of smart-phones has greatly stimulated the spread of mobile malware, especially on the popular platforms such as Android. The fluidity of application markets complicate smart-phone security. There is a pressing need to develop effective solutions. Although recent efforts have shed light on particular security issues, there remains little insight into broader security characteristics of smart-phone application. Now, the analytical methods used mainly are the reverse engineering-based analysis and the sandbox-based analysis. Such methods are can be analyzed in detail. but, they take a lot of time and have a one-time payout. In this study, we develop a system to monitor that mobile application permissions at application update. We had to overcome a one-time analysis. This study is a service-based malware analysis, It will be based will be based on the mobile security study.
The Design and Implementation of Two-Way Search Algorithm using Mobile Instant Messenger
Lee, Daesik ; Jang, Chungryong ; Lee, Yongkwon ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 55~66
DOI : 10.17662/ksdim.2015.11.2.055
In this paper, we design and implement a two-way search algorithm that can provide a customized service through the user with real-time two-way communication using a mobile instant messaging service. Therefore, we design and implement the automative search system which enables delivering message to each user mobile terminal from a plurality of relay mobile terminals by utilizing the mobile instant messenger, not to deliver a message from the main server to the mobile instant messenger user directly. Two-way search system using the mobile instant messenger can be immediately collect the user`s response is easy to identify the orientation of each user, and thus can be provided to establish a differentiated service plan. Also, It provides a number of services(text, photos, videos, etc) in real-time information to the user by utilizing the mobile instant messenger service without the need to install a separate application. Experiment results, data processing speed of the category processing way to search for the data of the DB server from a user mobile terminal is about 7.06sec, data processing number per minute is about 13 times. The data processing speed of the instruction processing way is about 3.10sec, data processing number per minute is about 10 times. The data processing speed of the natural language processing way is about 5.13sec, per data processing number per minute is about 7 times. Therefore in category processing way, command processing way and natural language processing way, instruction processing way is the most excellent in aspect of data processing speed, otherwise in aspect of per data processing number per minute, the category processing way is the best method.
Tourism Information Reservation System considering the Security and Efficiency
Kim, Taekyung ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 67~72
DOI : 10.17662/ksdim.2015.11.2.067
As new Information technology such as IoT develops rapidly, a lot of changes are occurred in our lives. The Internet of Things is the network of physical objects or things embedded with electronics, software, sensors and connectivity to enable it to achieve greater value and service by exchanging data with the manufacturer, operator and/or other connected devices. This change is also applied to tourism industry. These days many people make a tour reservation using the internet. But it is required to consider the efficiency and security of tour reservation system. In this paper, we suggest a tour reservation system. First, we describe the computer reservation system, hotel reservation system and reservation system. Second, we perform the modeling of general reservation system and suggested reservation system. Third, performance evaluation is carried out with respect to efficiency and security. The results show that the suggested reservation system has a better performance than a general reservation system. At last we described the results and future works.
A Digital Forensic Analysis for Directory in Windows File System
Cho, Gyusang ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 73~90
DOI : 10.17662/ksdim.2015.11.2.073
When we apply file commands on files in a directory, the directory as well as the file suffer changes in timestamps of MFT entry. Based on understanding of these changes, this work provides a digital forensic analysis on the timestamp changes of the directory influenced by execution of file commands. NTFS utilizes B-tree indexing structure for managing efficient storage of a huge number of files and fast lookups, which changes an index tree of the directory index when files are operated by commands. From a digital forensic point of view, we try to understand behaviors of the B-tree indexes and are looking for traces of files to collect information. But it is not easy to analyze the directory index entry when the file commands are executed. And researches on a digital forensic about NTFS directory and B-tree indexing are comparatively rare. Focusing on the fact, we present, in this paper, directory timestamp changes after executing file commands including a creation, a copy, a deletion etc are analyzed and a method for finding forensic evidences of a deletion of directory containing files. With some cases, i.e. examples of file copy and file deletion command, analyses on the problem of timestamp changes of the directory are given and the problem of finding evidences of a deletion of directory containging files are shown.
A Study on the Archiving of Webtoon
Han, Hyekyung ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 91~100
DOI : 10.17662/ksdim.2015.11.2.091
The environment of using digital devices has been developed day by day, as mobile communication network has been fast and smart phone and tablet PC have been spread. When the environment changing, the contents consumers prefer have been changing too. The Webtoon became the representative contents of `Snack culture`. The webtoon has led the growth of cartoon market for years recently instead of the slow comics growth. And it places its elf as contents on a firm basis, as it has been adapted to another genre such as Pay, Flm, TV Drama. Now it`s expected to be an extgeneration contents that will lead Han-ryu(Korean wave). Though the webtoon has important and strong presence, there is no digital archive for collecting and preserving the webtoon, Korean Cartoon Contents Agency started making `webtoon archive`, but the groundwork and the study on the webtoon that represents digital culture contents are not enough a lot. In this study, the cases on digital archiving of culture contents in Korea are researched, and the direction on webtoon archiving that has just started is also discussed. The Archiving of webtoon that can`t be seperated from digital contents is connected with archiving of digital culture contents in direction where they should be headed to.
A Study for Visual Perception of for Interactive Media Interface to Realize the Contents of Child Participation Type
Oh, Moonseok ; Won, Jongwook ; Han, Gyuhoon ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 101~112
DOI : 10.17662/ksdim.2015.11.2.101
New media which appeared in accordance with the development of IT technology includes elements of the interaction to be developed as an interactive media. In the field of interactive media which can be most actively applied, there is the filed of experience exhibition based on the active participation of people who experienced. Interactive media applied to the experience exhibition area, in order to have an effective communication that is based on a high degree of immersion, has been utilized as a platform for educational contents. This study is intended to explore the elements of visual perception for developing an optimized interface in the perspective of children who are the main subject of educational contents to present the criteria for the development of an interface for children. Thus, this paper derives the elements by the analysis of the visual perception elements of children and the experiment for the immersion environment. By analyzing the results, this study is to present the criteria of the visual perception elements for the development of interactive media contents for children.
Design and Implementation of a Smartphone-based User-Convenance Home Network Control System using Gesture
Jeon, Byoungchan ; Cha, Siho ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 113~120
DOI : 10.17662/ksdim.2015.11.2.113
Under the penetration of smartphones equipped with a variety of features grows globally, the efficient using of a variety of functions of smartphones has been increased. In accordance with this trend, a lot of researches on the remote control method using the smart phone for consumer products in home networks. Input methods of the current smpartphoes are typically button-based inputs through touching. The button input methods are inconvenient for people who are not familiar touch. Therefore, the researches on the different input schemes to replace the touch methods are required. In this paper, we propose a gesture based input method to replace the touch-sensitive input that of the existing smartphone applications, and a way to apply it to home networks. The proposed method uses three-axis acceleration sensor which is built into smatphones, and it also defines six kinds of gestures patterns that may be applied to home network systems by measuring the recognition rates.
DEVS Modeling for Interactive Motion-based Mobile Contents Authoring Tool
Ju, Seunghwan ; Choi, Yohan ; Lim, Yongsoo ; Seo, Heesuk ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 121~129
DOI : 10.17662/ksdim.2015.11.2.121
Interactive media is a method of communication in which the output from the media comes from the input of the users. The interactive media lets the user go back with the media. Interactive media works with the user`s participation. The media still has the same purpose but the user`s input adds the interaction and brings interesting features to the system for a better enjoyment. We need a digital content using a dynamic motion and gesture of the mobile device. We made an authoring tool for content producers to easily create interactive content. We have tried to take advantage of the interaction by using a touch screen and a gravity sensor of the mobile device. This interaction may lead to allow the user to participate in the content, it can be used as a key device to assist in engagement. Furthermore, our authoring tool can be applied to various fields of publishing content.
A Study on Split Screen according to the Form Classification of Visual Media
Joo, Heonsik ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 131~139
DOI : 10.17662/ksdim.2015.11.2.131
This study suggests that the application of split screen as visual media can attain the effect of diversity through providing rich information and accepting diverse contents as gorgeous aesthetics. Single images are analyzed as appropriate to a demanded concentration genre such as news and dramas, entertainment. In contrast, images with natural images and ads images those are more appropriate and analyzed as the genre of the split-screen which is highly efficiency to the contents and also highly efficiency to the spatial diversification. In introducing various genres of digital contents into split screen, the synergy of contents is induced by placement in consideration of the characteristics of split screen position. In order to increase the concentration of the split-screen image, using the left area and right area above it, can increase the effectiveness of the content.
Value Chain Model and Big Data Utilization for a Successful the 6th Industry
Park, Sanghyeok ; Park, Jeongseon ; Lee, Myounggwan ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 141~152
DOI : 10.17662/ksdim.2015.11.2.141
Our agriculture and rural villages have faced negative conditions in many reasons. To overcome this situation, a new change is needed by the 6th industrialization. Many agriculture and rural villages in Korea are pursuing the 6th industrialization through the convergence of the primary, secondary, and tertiary industries to vitalize agriculture and rural villages. But there are several problems with the 6th industrialization. There is a limit to the capacity building of the members of the rural organization and Korean agricultural base primary, secondary, and tertiary industries are weak all. In addition, it has been insufficient research for value chain management of the region as a whole; there has been no study of information sharing across the region for the 6th industrialization. This study is about value chain management model for successful the 6th industry with Quick Response System and the big data technology. In this study to provide the efficiency of 6th industry value chain management with customer`s needs analysis using big data and research for the information share between the industries in the region through the information pipeline theory of the QR System. We hope that our study is helped to proceed successfully on the 6th industrialization in Korea.
A Case Study of Line Friends Character TransMedia Branding
Chang, Hyo Jin ; Kim, Young Jae ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 153~166
DOI : 10.17662/ksdim.2015.11.2.153
This paper proposes a trans-media branding for the trans-media-based cultural content marketing strategy. Trans-media brand analytical framework is proposed with previous studies. And mobile messenger Character `Line Friends` is analyzed for the text. Trans-media branding is accessible through a multi-platform in the technological environment. Consumer culture, as well as participate include business models to generate revenue also as brand equity. While the character elements that make up the story from the perspective of cultural content storytelling act as an independent cultural goods. Character is segmented elements. Therefore, trans- media branding of the characters are more meaningful. `Line Friends` trans-media branding can be summarized as follows: First, it takes advantage of the characteristics of the existing Information-Technology-based mobile. Second, it puts consistently found the content of the attributes of Mobile Messenger `communication` and `friendship`. And third, while the content of each platform is constantly linked with other platforms, the brand is positioned inside the window effect.
Impact of CEO`s transformational leadership on empowerment, self-efficacy and job satisfaction in IT company
Jeong, Giho ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 167~179
DOI : 10.17662/ksdim.2015.11.2.167
Recently the small and medium sized companies are more difficult to find people than large companies. So it is natural that having a great interest in leadership and its effects in organizations. This study examines how transformational leaders influence on empowerment, self-efficacy and job satisfaction in IT company. Investigating the effect between transformational leadership and job satisfaction in IT company may also be a tip of an understanding of how to manage employee turnover. Samples of 387 employees in IT companies were analyzed by structural equation modeling using Lisrel 8.7 and it showed acceptable data-fit of proposed model and supported all of research hypotheses. The empirical results indicated that transformational leadership significantly influences empowerment, self-efficacy and job satisfaction and also it confirmed that empowerment and self-efficacy are effective mediators linking job satisfaction. That is the findings reveal that transformational leaders boost employee`s job satisfaction indirectly.
The usage motivation of SNS: A Comparison of Open type and Closed type SNS
Jun, Byoungho ;
Journal of the Korea Society of Digital Industry and Information Management , volume 11, issue 2, 2015, Pages 181~192
DOI : 10.17662/ksdim.2015.11.2.181
A new communication revolution such as social networking service (SNS) has been transforming the way of interaction between people in both of individual level and organizational level. Recently many people have switched to closed type SNS such as Naver Band and Kakao group due to the several reasons. The purpose of this study is to investigate the usage motivation and satisfaction of SNS based on use and gratifications perspectives. Based on prior studies on use and gratifications of Internet-related media and SNS, information motivation, relationship motivation, pleasure/entertainment motivation, self-expression motivation, work motivation were identified as usage motivation of SNS. This empirical study explores how these motivations vary between open type SNS(facebook and twitter) and closed type SNS(band and kakao group). This study contributes to provide the base of activation strategies and practical implications for companies using SNS as a marketing tool.