Development Of Location-based Services Research Articles

An architecture and development methodology for location-based services

This paper presents SAGESS (spatial application generic environment system standards), an open framework location-based services (LBS) development architecture. It can be implemented without any third party software, and provides LBS developers with complete development control and technology choices. It also describes SAGE (spatial application generic environment), a methodology for creating LBS applications. It has the advantage of creating LBS applications that are light on the wireless device resources and are OS independent. It gives LBS developers the capability to build LBS applications based on generic templates, decreasing development cost and time. This paper presents a study of the deployment of a prototype LBS application on the SAGESS architecture platform, developed using the SAGE development toolkit.

Map Design Evaluation for Mobile Display

How to effectively represent spatial information on handheld mobile devices is a key question, given the increasing use of personal digital assistants (PDAs) and cell phones concurrent with the development of location-based services. The mobile use of digital maps on small displays presents new capabilities and challenges that differ from using paper maps in a mobile setting or viewing digital maps on a desktop computer. This research addresses these issues through a study that evaluated maps on a mobile device used for a field-based navigation task. Map representations at two levels of generalization were compared by analyzing subject performance in a pedestrian route-following task, in which a handheld computer was used as a navigation aid. Subject time and accuracy as well as interaction with the mobile device during the task were measured. The results carry implications for map design for small, mobile displays and identify factors that affect the use of maps while moving. Maps are and will increasingly be used on small displays in mobile contexts for a variety of purposes and in many different environments. The requirements and preferences of mobile users, as well as how these maps are used in different contexts, must be understood in order to inform more effective designs.

위치 기반 서비스에서 사생활 침해 문제 해결을 위한 사용자 위치 추적 방법

정보기술의 발달과 교통기술의 발달로 인해 현재 많은 정보화 시스템들이 등장하고 있다. 최근 GPS(Global Positioning System)의 보급과 위치정보의 중요성 이 대두되면서 위치 정보기반 서비스(LBS, Location Based Service)의 개발이 눈에 띄게 두드러지고 있다. 그러나 사용자 위치 정보 획득 기술이 발달함에 따라 한편으로는 사용자의 위치정보가 악용되어 사생활 침해와 같은 문제점도 나타나고 있다［1］. 본 논문은 사용자의 위치정보를 기반으로 이동경로 혹은 궤적을 패턴으로 분류하고 일반적인 사용자의 생활권역의 경로에 대해 학습을 실시하여 사용자의 위치정보를 개인의 처한 상황에 따라 전송하는 방식의 LBS 플랫폼을 제안하여 사생활 침해 문제에 대한 해결방법을 제시한다. Development of new information and traffic technology causes fast-growing in the field of information-based system. At recent, development of LBS(Location Based Service) makes a remarkable growth of industry as GPS(Global Positioning System) becomes wide-spread and location information becomes more important. However, there is a problem like infringement of privacy when location information is used improperly［1］. In this paper, LBS platform is proposed in order to prevent infringement of privacy. To implement, we classify user path as pattern in a zone of user life. Thereupon, location information is provided according to user' specific situation.

The Media and the Messages of Location-Based Services (LBS): Death of Distance or the Revenge of Geography?

With the dramatic increase of mobile phone users, coupled with steady innovations in wireless/embedded computing and communications, the past five years have witnessed the emergence of various kinds of location-based services (LBS). The backbone of LBS relies on an integration of multiple spatial and communication technologies, including (but not limited to) GPS, GIS, wireless communication, mobile computing, the Internet, etc. The emergence of LBS provides unprecedented business opportunities as well as enormous challenges for society. This paper reconceptualizes LBS as new media. By doing so, a synthetic framework based upon Marshall McLuhan's laws of the media is developed. The media and messages of LBS are discussed through a preliminary tetradic analysis, followed by a discussion on the applicability of Asimov's laws of robotics in guiding the development of LBS. The paper concludes by arguing that the way to cope with the paradoxes of technological innovations is a major challenge in the information age.