… our availability analysis approach is based on a Stochastic Petri Net model to evaluate the
availability of … of multi-tiered applications (queuing and request forwarding) as well as the high …

… to analyze the availability of multi-tiered Web applications. The methodology partitions the
analysis … introduce increasing complexity and sophistication into the analysis. Furthermore, the …

… Modern multi-tiered applications need to deploy multiple services to achieve more
flexibility of services and reusability of software in comparison to providing services based on …

… Due to their inherent distributed nature, predeployment testing for high-availability and
varying … of multitiered applications, we use queuing networks and Mean Value Analysis (MVA) …

… Central to the discussion of delivering high availability services is the assumption that we
know what high availability is and that we measure and track the organization's progress and …

… Multi-tiered transactional web applications are frequently used in IT enterprise based systems.
Due to their inherent distributed nature, pre-deployment testing for high-availability and …

… This section presents three scenarios that occur commonly in multi-tiered web applications
… availability and use of multi-processors and multi-cores for multi-tiered applications such as …

… and availability assurances to the users of multi-tiered applica… multi-tiered applications.
Formally, we state the capacity planning problem as follows: Suppose the multi-tiered application …

… application performance. We present a systematic methodology for instrumenting and monitoring
multi-tiered applications … ) is notified about the availability of measurement logs through …

… In the second phase, the evaluator uses an analytical model to compute the … on multi-tiered,
cluster-based services, and use a completely different set of metrics to evaluate availability …