Checkpoints for Service Level Operations

Stamou, Katerina; Kantere, Verena; Morin, Jean Henry; Longo, Antonella; Bochicchio, Mario A.

doi:10.1109/scc.2014.50

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…In [15], a novel, checkpoint-based notation for SLA management is defined. The authors propose the integration of special monitoring landmarks (namely, checkpoints) into the digraph model defined in [13].…”

Section: Related Workmentioning

confidence: 99%

“…The approach in [13]- [15] focus on managing SLA data in SOA scenarios. Actually, SLA representation covers a broader domain, as for example e-business outsourcing contracts.…”

Section: Related Workmentioning

confidence: 99%

“…Despite their high level of expressivity and effectiveness, they are specifically addressed to technicians and sectorial endusers, thus limiting their application on a wider scale. Thus, we believe that WSLA [9] and the model employed in [13] and integrated in [15], represent a foundational base suitable to be extended towards SLs and contract composition in SNs. The following sections will explain how this has been modeled.…”

Section: Related Workmentioning

confidence: 99%

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SLA composition in service networks

Zappatore

Longo

Bochicchio

2015

Proceedings of the 30th Annual ACM Symposium on Applied Computing

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Actual trends in IT management are more and more shifting towards services and their management. Typically, enterprises depend on services provided by third parties to realize their own service offers. However, the more services are composed, the higher grows the number of inter-and intra-organizational issues in service networks. Business Process Outsourcing (BPO) and Cloud Computing paradigms best represent such a complex scenario and require proper service governance across service providers and consumers. This can be achieved by revolving to Service Level Agreements (SLAs), in order to effectively manage contracts between parties as well as the corresponding obligations and guarantees over specific time spans. However, SLAs are mainly used as automated processes assisting users in monitoring and scheduling resources rather than end-user documents. SLAs are also seen as static documents in IT marketplaces, thus hindering their effective processing. In addition, when services are composed into higher-level ones, the contracts they are agreedupon and their SLAs should be composed accordingly. For such reasons, this research work has a two-fold purpose. Firstly, it aims at a better modeling of contracts and SLA composition. Contract templates as well as composition topologies and rules are introduced. Secondly, it proposes a tool for designing and visualizing service contracts composition and for simplifying data handling in contracts. The proposed tool exploits a directed tree graph paradigm in addition with an XML-based notation.

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Section: Related Workmentioning

confidence: 99%

“…The approach in [13]- [15] focus on managing SLA data in SOA scenarios. Actually, SLA representation covers a broader domain, as for example e-business outsourcing contracts.…”

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

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SLA composition in service networks

Zappatore

Longo

Bochicchio

2015

Proceedings of the 30th Annual ACM Symposium on Applied Computing

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“…In [5] the checkpoint notion for the management of SLAs information is defined and authors propose an integration of checkpoints into the digraph model defined in [4]. Checkpoints are used to study the topology of nearby SLA terms that evaluate the quality of delivered service levels at runtime.…”

Section: Related Workmentioning

confidence: 99%

Modeling Service Contracts Composition, Management and Visualization with tree graphs

Longo

Giacovelli²,

Bochicchio

2014

Proceedings of the 6th International Conference on Management of Emergent Digital EcoSystems

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The paper presents Ma.Vi.C, a tool to visualize and manage contracts, and in particular Service Level Agreements (SLAs), in Service-oriented Architecture (SOA), in order to manage and visualize their composition in IT services chains scenarios. The model is also oriented to Service Networks, seen as a combination of participants, relations between them, service requests and offerings [1]. Services contracts and SLAs definition suffer from a lack of templates or standards that would allow providers accurately identifying elements to be inserted into the contract, and defining the correct form to express service specifications, obligations and so on. These aspects have a direct impact in the case of composition of services, because services choreography involves both functional and service levels aspects. We propose a framework, Ma.Vi.C, for designing and visualizing the composition of service contracts and to simplify contracts data handling. The framework is based on a set of model for modeling service contracts, topologies and rules, which are based on tree graph and XML.

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