Topic
Service-level agreement
About: Service-level agreement is a research topic. Over the lifetime, 4358 publications have been published within this topic receiving 75333 citations. The topic is also known as: SLA.
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TL;DR: A technique for predicting whether the execution of a service composition will be compliant with service level objectives (SLOs) by drastically reducing the violation frequency of the SLA while maximizing the usage of the candidate services is proposed.
22 citations
01 Jan 2010
TL;DR: This paper analyzes the requirements for tradable resource goods and suggests a detailed goods definition, which is easy to understand, can be used with many market mechanisms, and addresses the needs of a Cloud resource market.
Abstract: Research into computing resource markets has mainly considered the question of which market mechanisms provide a fair resource allocation. However, while developing such markets, the definition of the unit of trade (i.e. the definition of resource) has not been given much attention. In this paper, we analyze the requirements for tradable resource goods. Based on the results, we suggest a detailed goods definition, which is easy to understand, can be used with many market mechanisms, and addresses the needs of a Cloud resource market. The goods definition captures the complete system resource, including hardware specifications, software specifications, the terms of use, and a pricing function. To demonstrate the usefulness of such a standardized goods definition, we demonstrate its application in the form of a WS-Agreement template for a number of market mechanisms for commodity system resources.
22 citations
TL;DR: An original self-* overload control (SOC) algorithm that self-configures a dynamic constraint on the rate of incoming new sessions in order to guarantee the fulfillment of the quality requirements specified in a service level agreement (SLA).
22 citations
Patent•
17 Mar 2006
TL;DR: In this article, a QoS processor is adapted for processing QoS related parameters which are retrieved from the SLA registry, for predicting the end-to-end QoS values for one communication path between the originating and destination location and for ranking or selecting or both ranking and selecting, based on the predicted end to end QoS value, one or more recommended communication paths between the originated location and the destination location.
Abstract: System for processing a communication session to be set up via a communication path from an originating location (ASD) to a destination location (TYO) through a communication network. A common Service Level Agreement (SLA) registry contains Quality-of-Service (QoS) related parameters representative for the QoS valid for the domains between the originating location and the destination location. A QoS processor is adapted for processing QoS related parameters which are retrieved from the SLA registry, for predicting the end-to-end QoS values for one communication path between the originating and destination location and for ranking or selecting or both ranking and selecting, based on the predicted end-to-end QoS values, one or more recommended communication paths between the originating location and the destination location. The Quality-of-Service (QoS) processor may be adapted for processing the QoS parameters retrieved from the SLA registry and predicting end-to-end QoS values representative all communication paths between each network domain to each other network domain and for storing said predicted end-to-end QoS values in a QoS registry for selection and/or ranking actions for new session requests in future.
22 citations
Patent•
29 Nov 2002TL;DR: In this article, a decentralized SLS monitoring structure includes a measurement preparation and minimization module, a measurement launching coordination module, measurement scheduler module, and measurement initialization module, as well as a configuration server providing information regarding the test parameters for a given test and an SLS Objects database database providing information on the SLA (service level agreement).
Abstract: A decentralized SLS monitoring structure (30) includes a measurement preparation and minimization module (32), measurement launching coordination module (34), measurement scheduler module (36) and measurement initialization module (38). A configuration server (40) provides information regarding the test parameters for a given test and an SLS Objects database (42) provides information on the SLS specification for a given SLA (service level agreement).
22 citations