SLAs for cross-layer adaptation and monitoring of service-based applications

Bratanis, Konstantinos; Dranidis, Dimitris; Simons, Anthony J. H.

doi:10.1145/2031746.2031755

Cited by 7 publications

(6 citation statements)

References 8 publications

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“…This work was developed in the scope of the SLA@SOI European Project [9]. Beyond these works, there are other systems that have been developed to monitor whether service based applications violate SLAs including, for example, SALMon [42][ 43], SLAMonitor [44] HA-SLA [45] and CLAM [46].…”

Section: Related Workmentioning

confidence: 99%

Automatic test case generation for WS-Agreements using combinatorial testing

Palacios

García-Fanjul

Tuya

et al. 2015

Computer Standards & Interfaces

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent repository link AbstractIn the scope of the applications developed under the service-based paradigm, Service Level Agreements (SLAs) are a standard mechanism used to flexibly specify the Quality of Service (QoS) that must be delivered. These agreements contain the conditions negotiated between the service provider and consumers as well as the potential penalties derived from the violation of such conditions. In this context, it is important to assure that the service based application (SBA) behaves as expected in order to avoid potential consequences like penalties or dissatisfaction between the stakeholders that have negotiated and signed the SLA. In this article we address the testing of SLAs specified using the WS-Agreement standard by means of applying testing techniques such as the Classification Tree Method and Combinatorial Testing to generate test cases. From the content of the individual terms of the SLA, we identify situations that need to be tested. We also obtain a set of constraints based on the SLA specification and the behaviour of the SBA in order to guarantee the testability of the test cases. Furthermore, we define three different coverage strategies with the aim at grading the intensity of the tests. Finally, we have developed a tool named SLACT (SLA Combinatorial Testing) in order to automate the process and we have applied the whole approach to an eHealth case study.

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Section: Related Workmentioning

confidence: 99%

Automatic test case generation for WS-Agreements using combinatorial testing

Palacios

García-Fanjul

Tuya

et al. 2015

Computer Standards & Interfaces

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“…Monitoring and adaptation for service-based systems [34] and cross-layer adaptation and monitoring for service-based applications [35] have been researched as precursors for advanced systems for failure prevention and recovery in the cloud. The extensive state-of-the-art survey [21] identified challenges to be addressed, which include (i) what data should be collected and what metrics used; (ii) how brokers should manage large volumes of events collected from heterogeneous sources; and (iii) what kinds of analysis and prediction techniques should be used to support proactive failure prevention.…”

Section: Related Workmentioning

confidence: 99%

Advanced service brokerage capabilities as the catalyst for future cloud service ecosystems

Simons

Bratanis

Kourtesis

et al. 2014

Proceedings of the 2nd International Workshop on CrossCloud Systems

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ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. alessandro.rossini@sintef.no ABSTRACTMarket analysts have foreseen the emergence of cloud brokers in the mediation of cloud services. But rather than focus on current kinds of intermediary role, it is more constructive to consider the kinds of brokerage capability that could be offered in the future, which go far beyond the integration, aggregation and customization services available today. This paper identifies advanced capabilities for cloud service governance, quality assurance and optimization that will be critical in catalyzing the emergence of cloud service ecosystems, environments in which all parties will find their symbiotic niches. It shows the path whereby a platform provider could evolve to become the hub of a cloud service ecosystem, through gradually taking on more of these advanced brokerage capabilities. The paper provides an overview of work conducted by the EU FP7 Broker@Cloud project towards realizing these advanced brokerage capabilities.

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“…Comuzzi et al [4] tackles the relation between the establishment and monitoring of SLAs in the scope of SLA@SOI European Project. In addition to these works, other different systems have been developed to monitor service based applications with the aim of detecting SLA violations, for example, SALMon [15], SLAMonitor [8] or CLAM [3].…”

Section: Related Workmentioning

confidence: 99%

Identifying Test Requirements by Analyzing SLA Guarantee Terms

Palacios

García-Fanjul

Tuya

et al. 2012

2012 IEEE 19th International Conference on Web Services

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Abstract-Service Level Agreements (SLAs) are used to specify the negotiated conditions between the provider and the consumer of services. In this paper we present a stepwise method to identify and categorize a set of test requirements that represent the potential situations that can be exercised regarding the specification of each isolated guarantee term of an SLA. This identification is addressed by means of devising a set of coverage levels that allow grading the thoroughness of the tests. The utilization of these test requirements would focus on twofold objectives: (1) the generation of a test suite that allows exercising the situations described in the test requirements and (2) the support for the derivation of a monitoring plan that checks the compliance of these requirements at runtime. The approach is illustrated over an eHealth case study.

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SLAs for cross-layer adaptation and monitoring of service-based applications

Cited by 7 publications

References 8 publications

Automatic test case generation for WS-Agreements using combinatorial testing

Automatic test case generation for WS-Agreements using combinatorial testing

Advanced service brokerage capabilities as the catalyst for future cloud service ecosystems

Identifying Test Requirements by Analyzing SLA Guarantee Terms

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