• Journal of Korea Multimedia Society
• /
• v.13 no.5
• /
• pp.710-721
• /
• 2010

Recently, for the advancement of embedded technology about mobile device, a new kind of service, mash-up is appeared. It is service or application combining multimedia content making tool or device and web-GIS(geographic information system) service in the mobile environment. This service can be ease to use for casual user and can apply in various ways. So, It is served in web 2.0 environment actively. But, in the mashup service, because generated multimedia contents linked with web map are new type of multimedia contents which include user's migration routes in the space such as GPS coordinates. Thus, there are no protection ways for intellectual property created by GIS web-map service users and user's privacy. In this paper, we proposed a location and user information hiding scheme for GIS web-map service. This scheme embeds location and user information into a picture that is taken by camera module on the mobile phone. It is not only protecting way for user's privacy but is also tracing way against illegal photographer who is peeping person through hidden camera. And than, we also realized proposed scheme on the mobile smart phone. For minimizing margin of error about location coordinate value against contents manipulating attacks, GPS information is embedded into chrominance signal of contents considering weight of each digit about binary type of GPS coordinate value. And for tracing illegal photographer, user information such as serial number of mobile phone, phone number and photographing date is embedded into frequency spectrum of contents luminance signal. In the experimental results, we confirmed that the error of extracted information against various image processing attacks is within reliable tolerance. And after file format translation attack, we extracted embedded information from the attacked contents without no damage. Using similarity between extracted one and original templete, we also extracted whole information from damaged chrominance signal of contents by various image processing attacks.

• Spatial Information Research
• /
• v.16 no.1
• /
• pp.79-99
• /
• 2008

Enterprises as well as central and local governments have tried to apply ubiquitous technology to the actual life on the various types of business and projects. In this paper we develop strategic plan to provide public service on public areas based on needs analysis of public services as well as trend analysis of ubiquitous and web technology. Ubiquitous service model should be based on geospatial web which can incorporate participation and collaboration concepts, as the wire/wireless network system develop rapidly. To achieve this purpose, we suggest the following projects; 1), construction of internet map based on geospatial web technology, 2), development of web contents based on geospatial web, 3), installing ubiquitous equipment, and 4), upgrade Seoul Metropolitan Government's homepage and internet system which can incorporate web 2.0 concepts. Ubiquitous service model should be based on not only development of ubiquitous technology but also needs of consumer such as citizen, enterprises, and public sectors which have an interest in that place. Geospatial web will be the core of development of ubiquitous service models.

• Journal of The Korean Association of Information Education
• /
• v.15 no.2
• /
• pp.287-294
• /
• 2011

In this paper, we suggest performance enhanced Mobile Web service architecture. Mobile Web Services are new technology that integrates different applications to provide interoperability. SOAP is a lightweight message exchanging protocol and is a principal factor that decides the Web Services performance. When a mobile Web Service is implemented with the Java technology, it should be implemented with both a SOAP message processor like AXIS, and Java Servlet container (e.g. Tomcat). This typical implementation is not efficient because it requires an additional communication port and process. In this paper, we suggest a new method that replaces this typical approach to enhance Web Service performance.

• Journal of Information Technology and Architecture
• /
• v.10 no.2
• /
• pp.159-167
• /
• 2013

Web Services offer many benefits over other types of middleware in distributed computing. However, usage of Web Services results in large network bandwidth since Web Services use XML-based protocol which is heavier than binary protocols. Even though there have been many researches to minimize the network traffic and bandwidth usages of Web Services messages, none of them are solving problem clearly yet. In this paper, we propose a transparent proxy with cache to avoid transfer of repeated SOAP data, sent by Web Service to an application. To maintain the cache consistency, we introduce publish/subscribe paradigm using WS-Eventing between the proxy and Web Service. The implemented system based on our proposed architecture will not compromise the standards of Web Service. The evaluation of our system shows that caching SOAP messages not only reduces the network traffic but also decreases the request delays.

• Journal of the Korean Society for information Management
• /
• v.23 no.2
• /
• pp.81-96
• /
• 2006

Changes in document delivery service environment such as spread of web-based research information communication and direct communication between users and information providers have considerable effects on document delivery service institutes. Swift advances in information technology have allowed users to receive information on their desktops via web. Web-based document delivery makes the massive scale of reproduction and distribution possible so it needs to protect the copyright holders' rights. This study identifies the current trends and issues of document delivery service environment and reviews electronic document delivery services of foreign countries. Also this study introduces the domestic electronic document delivery service, e-DDS, and evaluates the copyright issues for the service.

• Spatial Information Research
• /
• v.20 no.2
• /
• pp.35-44
• /
• 2012

Recently, Web map service is actively accomplished in both private companies and public offices. As a platform, it exists variously from desktop to smartphone. The technology being used has a trend to develop continuously. Also, Web map system provides various open API for people who use geospatial service and data mashup. In this paper, RIA technology which is popularly used recently in web map service w ill be applied to introduce the functions different language map services are mostly using. Based on users' feeling about different web browser's speed, test and analysis have been accomplished. The result is that there are different characteristics according to different functions such as JavaScript, Silverlight, Flex. Actual test has been personally carried out on map service in Seoul GIS portal system. The comprehensive conclusion is that Silverlight has more outstanding function compared with other RIA techniques under the test environment.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.30 no.2
• /
• pp.29-36
• /
• 2007

This study was concerned about mobile web-service of a VMI in the SCM system. The VMI would be a main module part of the SCM and regarded as very important thing on supply chain. Therefore, it was essential to react in real time of materials production and situation of used auto-part in procurement company. We could find an affordable method to realize the VMI in a web service. The web service has made inter relevant enterprise easy to collaborate because of supporting most operating system and frame-work. Moreover, the use of a mobile tools was guaranteed a product recording and requirement of materials to real time in a rapid changing of production environments. The result of this research was very useful to apply the VMI system in medium and small sized auto parts company. This web service package has programmed the Visual Studio Dot Net 2003 and the MS SQL 2000 as database.

• Proceedings of the KSRS Conference
• /
• 2003.11a
• /
• pp.340-342
• /
• 2003

Location based services based on positions of moving objects are expanding the business area gradually. The location is included all estimate position of the future as well as the position of the present and the past. Location based routing service is active business application in which the position information of moving objects is applied efficiently. This service includes the trajectory of past positions, the real-time tracing of present position of special moving objects, and the shortest and optimized paths combined with map information. In this paper, we describes the location based routing services is extend in distributed web GIS environment. Web GIS service systems provide the various GIS services of analyzing and displaying the spatial data with friendly user - interface. That is, we propose the efficient architecture and technologies for servicing the location based routing services in distributed web GIS environment. The position of moving objects is acquired by GPS (Global Positioning System) and converted the coordinate of real world by map matching with geometric information. We suppose the swapping method between main memory and storages to access the quite a number of moving objects. And, the result of location based routing services is wrapped the web-styled data format. We design the schema based on the GML. We design these services as components were developed in object-oriented computing environment, and provide the interoperability, language-independent, easy developing environment as well as re - usability.

• Proceedings of the Korean Information Science Society Conference
• /
• 2004.04a
• /
• pp.670-672
• /
• 2004

유ㆍ무선 및 방송 그리고 인터넷의 망 통합을 염두에 둔 차세대 통신망은 다양한 유형의 단말기 보급과 더불어 새로운 서비스 창출에 대한 필요성이 대두되었고 인터넷 기반의 응용 소프트웨어를 개발하는 방법에 대한 진화가 정보 기술 쪽에서 진행되고 있다. 소프트웨어를 통합하여 비용을 절감하며, 서로 다른 도메인에서 개발된 기능들이 결합된 새로운 응용들을 개발하는 방법론으로서 Web Service 개념이 도입되고 있다. 인터넷에서의 Web Service 기술 적용 시도에 비슷한 시점에 전기통신 분야에서도 표준화 기관들인 ETSI. 3GPP 및 Parlay를 중심으로 통신망 자원들을 사용하기 쉽도록 개방하여 통신 시장에서의 잠재적 신규서비스들을 창출하려는 활발한 노력의 결과 개방형 Parlay/OSA API들을 표준으로 규격화하였으며 최근에 전기통신 분야에 친숙하지 않은 IT 개발자들을 통신 시장에 대거 흡수하여 IT 기술을 전기통신 분야에 접목시키려는 노력의 일환으로 Parlay X Working Group은 Parlay/OSA API들을 더욱 추상화시키기 위한 시도를 하고 있다. ［9］ 본 논문에서는 Parlay Gateway 와 Parlay X Gateway 그리고 Web Service를 개발하여 웹 서비스 기반의 개방형 통신 서비스의 활성화방안에 대해서 기술한다.

• Journal of the Korean Society of Food Culture
• /
• v.23 no.3
• /
• pp.388-396
• /
• 2008

This study examined the effects of Web ad components on customer attitude and purchasing decisions in 300 individuals who visited family restaurant Websites. The results are summarized as follows: First, Web ad components such as content, design, and interactivity had effects on the cognitive attitudes of the customers. And design, accessibility, and Web functionality had significant effects on the customers' emotional attitudes. In addition, content, navigation, and Web functionality had significant effects on the customers' behavioral attitudes. Lastly, the cognitive, emotional, and behavioral attitudes of the customers had significant effects on their purchases. From these results, design elements such as content, color, and menus, along with user interactivity for information are considered helpful components of a food service Web ad for customer cognition of the restaurant's information. In addition, aspects of Web functionality such as the food service's Web ad set-up, or the protection of personal information, the color design and menu, as well as accessibility for easy use, are all helpful in terms of gaining a customer attitude that is friendly and preferential towards a restaurant's menu items.