The Web services technology has received significant momentum in recent years, because it allows people to easily utilize and integrate existing software applications to rapidly create new business services. However, how to ensure the trustworthiness of a Web services-oriented system remains a big challenge. One critical issue is how to test a Web service in an effective and efficient manner. I...

Mobile devices enabled with Web services are being considered as equal participants of the Web services environment. The frequent mobility of devices and the intermittent disconnection of wireless network require migrating or replicating Web services onto adjacent devices appropriately. This article proposes an efficient method for migrating and replicating Web services among mobile devices thr...

Nowadays Web based social networks are becoming more and more popular. As the functions of social networks are increasing it is reasonable to consider how mobile devices can connect to them. The paper is based on our experiences of implementing a Web based system which functions are available from mobile phones via Web services. A mobile client was also implemented that way the special abilitie...

Web Services have started to appear on servers as interfaces between business-to-business applications. To date, mobile devices have only consumed Web Services running on stationary servers. We expand this notion so that mobile devices can both offer and consume Web Services. We discuss some interesting classes of applications that can be enabled when mobile devices can host Web Services. This ...

IYOUIT is a prototype mobile service to pioneer a context-aware digital lifestyle and its reflection on the Web. The service is made freely available and leverages Semantic Web technology to implement smart application features. We intend to not only present and demonstrate IYOUIT at ISWC’08 but also to provide it to conference attendees, based on their demand.

This paper presents a development and an evaluation of a mobile mashup generator system to compose mobile mashup applications and Tethered Web services on a mobile device (TeWS). With less programming efforts, our system and description language framework enables a rapid development, a reusability of working components and a delivery of new cooperative mobile mashup applications. Working compon...

  Network and processing overhead associated with web services is a significant challenge to its performance. As a result, web service providers often announce a service level agreement. This ensures that consumers, who pay for the service, can get the service at a given quality level. In this paper, we study the competition between two providers offering functionally the same web services, whe...

Recent reports by IT research groups argue that recent developments in mobile devices and the mobile web will lead to the majority of Internet users accessing web services via mobile devices in the next few years. An analysis of web access statistics for mobile web browsers confirms that, if trends continue, web service access from mobile devices should exceed desktop access by end 2013. Due to...

As service world becomes bigger, behavior of people in this world becomes interesting and analysis of usage sequences can yield useful information about web services and the way they are used. Application of data mining and web mining techniques in the field of web services is introduced in order to discover interesting patterns among web services usage and interactions. In this paper, we intro...

Mobile phone penetration in the developing world shows remarkable growth patterns, which triggers competition among mobile operators and service providers. As a consequence, this has made mobile communications more affordable for people in developing countries. At the beginning, people use mobile phones only for audio or text communications. Later, people start using their mobiles to access the...