The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper proposes a means to specify the semantics of fault tolerant Web services at an abstract level using semantics adapted from queuing system theory. A framework that supports the implementation of specified fault-tolerance is also described. Based on our work, we show how the redundancy and diversity characteristics of a service-oriented system can be expressed and implemented in a Web-service...
A progressive-evolution strategy for migrating systems to service-oriented architectures should minimize the risk to investments in existing software systems while letting businesses exploit the benefits of services. In principle, hybrid systems combine services with nonservice elements. SOAs present a compelling vision for businesses. Conceptually, services bring together a layer of business functionality...
P2P file-sharing poses a number of serious problems for business network administrators including: unpredictable network usage, increased vulnerability to security threats and the danger of legal action. Due to these problems, most businesses attempt to restrict the use of P2P. This paper and the associated demonstration explore the nature of business participation in P2P and particularly highlight...
P2P file-sharing poses a number of problems for system administrators including unpredictable network usage, increased vulnerability to security threats and the danger of legal action. Due to these problems, many businesses take measures to restrict the use of P2P software, but how successful have these measures been? This paper analyzes the degree to which business networks have been penetrated by...
Software systems are an integral part of industrial processes at every level, from low-level production control to enterprise planning. The maintenance challenge presented by such systems is about finding an acceptable balance between risk involved in evolving the system and benefits offered by the update. Service-oriented architecture (SOA) promises to leverage software systems to become more efficient...
The advent of and growing interest in service- oriented architectures (SOA) present business leaders with a number of problems. They promise to deliver hitherto unseen business process agility, but at the risk of making investment in existing systems obsolete. The established orthodoxy is that the maintenance problem presented by installed systems is about finding an acceptable balance between risk...
Service-centric computing is developing and maturing rapidly as a paradigm for developing distributed systems. In recent years there has been a rapid growth in the number and types of processes being proposed to support aspects of SOC. Many of these processes require that services be modelled in a particular way and this puts great pressure on traditional notions of service specification, questioning...
The growth of mobile devices with near PC equivalent capabilities has brought with it the possibility of mobile P2P systems. However, the nature of mobile devices brings additional issues that need to be considered, especially for when considering system security. This paper presents our initial work on the EU funded PEPERS project that seeks to support the development of secure mobile P2P applications...
This paper describes the open P2P tracing system which aims to improve the research community's understanding of P2P file sharing systems by providing continuous and up-to-date traffic data which is anonymized and made freely accessible to all interested parties. It is our hope that this open data set will grow over time into a resource capable of exposing trends in P2P network usage and promote research...
Since the release of Napster in 1999, P2P file-sharing has enjoyed a dramatic rise in popularity. A 2000 study by Plonka on the University of Wisconsin campus network found that file-sharing accounted for a comparable volume of traffic to HTTP, while a 2002 study by Saroiu et al. on the University of Washington campus network found that file-sharing accounted for more than treble the volume of Web...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.