In this paper, we consider pricing schemes at an M/M/1 queue with infinite potential demand but where the number of customers in the queue depends on both the price and the offered quality of service (QoS). Our model aims at comparing the optimal revenue for three different strategies: first the case of a fixed price; second the case where there is a threshold on the queue occupancy such that a...

0 7 4 0 7 4 5 9 / 0 4 / $ 2 0 . 0 0 © 2 0 0 4 I E E E competitive advantage to simply “something good.” Consequently, the software community looks upon ROI with increasing suspicion as a vague and slippery gimmick used chiefly to make the sales pitch (invariably unsubstantiated) for a particular product or initiative. On the contrary, ROI analysis aims to achieve clarity in the decision-making ...

We introduce an end-to-end framework for data quality that integrates business strategy, data quality models, and supporting investigative and governance processes. We also describe a supporting IT architecture for this framework. Finally, we describe how this framework was implemented at Visa International Service Association (“Visa”) and some of the lessons learned during its use over the pas...

The appearance of burst packet losses and its devastating effect on Voice over IP (VoIP) service have imposed a requirement for the implementation of loss recovery mechanisms to address VoIP quality during periods when high packet loss is exhibited. Existing loss recovery mechanisms are dependent on end point capabilities, whereas Quality of service (QoS) routing protocols suffer from complexit...

Wireless Sensor Networks (WSNs) consist of hundreds or thousands of sensor nodes with limited processing, storage, and battery capabilities. There are several strategies to reduce the power consumption of WSN nodes (by increasing the network lifetime) and increase the reliability of the network (by improving the WSN Quality of Service). However, there is an inherent conflict between power consu...

Extranets are the third wave of Internet technology. In business-to-business relationships more and more companies offer Extranets that – while maintaining privacy and confidentiality – make internal information available to business partners and offer process integration via the World Wide Web. Especially for small companies an Extranet is an appealing alternative to EDI technology. Despite al...

In this paper, a data validation and reconstruction methodology that can be applied to the sensors used for real-time monitoring in water networks is presented. On the one hand, a validation approach based on quality levels is described to detect potential invalid and missing data. On the other hand, the reconstruction strategy is based on a set of temporal and spatial models used to estimate m...

In recent years, revenue management has become an important competitive strategy in the hotel, and the level of hotel performance directly reflects the effectiveness of the application of revenue management. But so far, academic research about hotel revenue management performance influencing mechanism and evaluation is still extremely limited. Based on fully retrieving the relevant literature, ...

This paper explores the mitigation of transcultural clinical barriers in a clinical setting where migrant backstretch workers receive health and wellness services from university faculty, staff, and nursing students at a nurse-led clinic located behind the stable area of a local thoroughbred racetrack. Caring for this vulnerable population is critical as these underserved individuals encounter ...