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Replication is widely used in application server products to tolerate faults. An important challenge is to correctly coordinate replication and transaction execution for stateful application servers. Many current solutions assume that a single client request generates exactly one transaction at the server. However, it is quite common that several client(More)
In application server systems, such as J2EE, replication is an essential strategy for reliability and efficiency. Many J2EE implementations, both commercial and open-source, provide some replication support. However, the range of possible strategies is wide, and the choice of the best one, depending on the expected application profile, remains an open(More)
Mobile phones are becoming a new popular platform for business applications. The number of mobile business users increases and so does the need for efficient mobile data exchange and collaboration. However, a traditional business application design approach is not suitable for mobile devices because of the limited memory and connection bandwidth. This paper(More)
A mobility-enabled architecture is usually required to facilitate the access of enterprise systems from mobile devices. Typically, mobility enabled architectures are separated in online architectures and offline architectures. The online architectures enable mobile clients to use the online model in which mobile clients access business logic and data(More)
In this paper we present a wireless solution for monitoring people in need of medical assistance. The application relies on the use of cell phones and inexpensive sensors and is best suited for the elderly and home-bound people. The main functions of the proposed architecture are: (1) Ability to collect signals through a wireless sensor network using(More)
The goal of this poster is to describe our implementation of a newarchitecture enabling efficient integration between mobile phoneapplications and Web Services. Using this architecture, we haveimplemented a mobile shopping assistant described further. In orderto build this architecture, we designed an innovative XMLcompression mechanism to facilitate data(More)