Naeem Janjua

ABSTRACT Cloud computing is a very attractive option for service users and service providers for their businesses because of the benefits it provides. A major concern among service users regarding cloud adoption, however, is the unpredictability of performance in relation to the services provided. Even though guarantees in the form of service-level agreements are provided to users by service providers, real-time service-level degradability remains a critical concern; hence, there is a need for an approach that assists users to manage a service before it fails. The approaches proposed in the literature assess and evaluate the performance of the cloud infrastructure of providers, but this does not guarantee that a given service instance will meet the desired quality level because there may be factors other than the provider's infrastructure that will affect the level of quality of the service instance. In this paper, we present an approach that measures the quality of a service instance in real time and provides important analysis for service users as to whether they will achieve their desired objectives. This analysis also constitutes an important input for service users in the assessment and management of a service to avoid the failure to achieve objectives.

Information sharing within or cross enterprise is the core need of each enterprise to fully benefit from the state of the art technologies. On one hand, it allows utilizing the resources efficiently, and on the other hand, it expedites the processes of enterprise. Healthcare ...

Business policies are pervasive in web-based information systems and the introduction of the semantic web has opened new fertile horizons for their representation and automated processing. However, a number of challenges have also emerged. First is the formal representation and handling of contradictory business policies. Second, is the extraction of process models from a given set of business policies. This paper reports on a semantic, rule-based information system for business policies representation, and argumentative reasoning to resolve conflicts and integrate them to produce a business process model for a given task. We demonstrate the working of the proposed system with help of a case study.