A big issue in the paradigm of Service Oriented Architectures (SOA) is service discovery. Organizations publish their services via the Internet. These published services can then be automatically found and accessed by other services, meaning, the services are composed. A fundamental property of a service composition is weak termination, which guarantees the absence of deadlocks and livelocks. I...

abstract background: hospital emergency ward plays a pivotal role in hospital and health care system regarding necessity of immediate,qualicative and effective performance due to numerous and complicated processes happens in the emergency ward. qfd is one of the most effective methods used for designing and improving the quality in order to fulfill customers' expectations and improve their...

Background Innovative service models to facilitate end-of-life care for older people may be required to enable and bolster networks of care. The aim of this study was to understand how and why a new charitably funded service model of end-of-life care impacts upon the lives of older people.   <span class="fon...

According to the current Airport planning and design practices, for a given demand level there is a corresponding space requirement. While in practice, there are always trade-offs between cost and levels of service, labor and automation, equipment and fixed facilities, and expansion of existing facilities and the addition of new ones. In this research, the airport passenger Terminal Building (P...

In this paper, we study a single server Markovian queue with state dependent accessible services, reneging and feedback of customers. The server can accommodate at the most $d$ customers in the service station, after which the new arrivals have to wait in the primary queue of infinite waiting space. All arrivals demand First Essential Service (FES), after completing FES, customers decide to joi...

In this paper we study two echelon multi-server tandom queueing systems where customers arrive according to a poisson process with two different rates. The service rates at both echelons are independent of each other. The service times of customers is assumed to be completed in two stages. The service times at each stage are exponentially distributed. At the first stage, the customers may balk ...