The contribution of this paper is a Generic Communication Middleware (GCM) concept and architecture definition for application messaging in heterogeneous distributed computing environments. The GCM is targeted to facilitate the development of distributed applications into heterogeneous computing environments, with special attention given to applicability for both wireless and wired communication and variable capability devices. The requirements are gathered from the literature and initial prototype implementations. The GCM concept and architecture are presented in the paper. The novelty of the GCM middleware is that it provides both application and transport independent messaging system architecture that can be widely applied in different applications and services as middleware. Functional validation of the GCM concept and architecture is provided via prototypes overviewed and empirically analyzed in the paper.
One of the purposes of the Active Service Environment Management system (ASEMA) is to provide the best possible multimedia service experience to end users. This is realized by dynamically adapting to changes in service environment's configuration and used network infrastructure's quality of service (QoS) changes. The research problem of the paper is to find a solution for proactive approach to manage multimedia service performance in a dynamic service environment. The research is based on the constructive method by analyzing the related publications and experimentation with the selected technologies by implementing the solutions part of the ASEMA prototype. The prototype has profile negotiation functionality that dynamically updates ASEMA profiles according to dynamic changes in an end user's service environment. The quality of service management functionality in ASEMA monitor's actively underlying network's QoS level. It adjusts quality of video stream according to the changes in QoS levels of the used network infrastructure.
The latest advancements in mobile communication technologies offer lucrative business cases for financial service provides. The new technologies are not just used for enhancing the existing financial enterprise systems with wireless communication extension but to create new services for nomadic users that have not being existed yet. This will enable more versatile financial service offerings to nomadic end users. Additionally it will expand financial services to new user groups that have not been able access the either geographic or economic reasons. The research problem of the paper is to define end user and middleware requirements and design solutions to enable ubiquitous financial services for nomadic users. The prototype systems must be integrable on top of existing traditional enterprise system solutions. The research is based on the constructive method by analyzing the related publications and industry trends, interviewing experts in the financial services field and experimentation with the selected technologies. The final outcome is prototype service environment which is based on the new innovations introduced in this paper. The major findings include system requirements, design solutions and prototype service environment.
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