A methodology to define QoS and SLA requirements in service choreographies

Diaz, Alfonso Phocco; Batista, Daniel Macêdo

doi:10.1109/camad.2012.6335333

Cited by 3 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Xiangpeng et al [22] provide a formal analysis of integrating QoS into the language Chor and provide composition techniques for latency and cost. In [23], [20], stochastic models are used as an intermediate to evaluate QoS/SLAs in choreographies. Automatic triggers and strategies for QoS aware re-planning of composite orchestrations are studied in [24], which may prove promising for extension into choreographies.…”

Section: Related Workmentioning

confidence: 99%

QoS Composition and Analysis in Reconfigurable Web Services Choreographies

Kattepur

Georgantas

Issarny

2013

2013 IEEE 20th International Conference on Web Services

View full text Add to dashboard Cite

Abstract-Quality of Service (QoS) in orchestrated web services compositions have been well studied with probabilistic and multi-dimensional models. Choreographies that involve message passing among services, on the other hand, require further analysis. In this paper, we begin with the set of QoS domains that may be studied in case of choreographies and the algebraic rules for their composition. As choreographies manage QoS composition in a distributed fashion, techniques to enrich functional specifications with QoS are examined using the model proposed in the CHOReOS project. These are further analyzed with choreographies that may reconfigure due to functional or QoS requirements. Studies on the effects of such reconfiguration on multiple QoS domains can lead to better understanding of optimal runtime configurations along with associated tradeoffs. A goal programming approach is also proposed to choose Pareto optimal solutions with respect to diverse QoS domains.

show abstract

Section: Related Workmentioning

confidence: 99%

QoS Composition and Analysis in Reconfigurable Web Services Choreographies

Kattepur

Georgantas

Issarny

2013

2013 IEEE 20th International Conference on Web Services

View full text Add to dashboard Cite

show abstract

“…In [17], Mancioppi et al provide a structured overview of the possible metrics to be incorporated within choreographies. A generalized stochastic Petri net model is proposed in [8] to compose QoS in choreographies. In [2], the MOSES framework is proposed as an efficient and flexible technique for runtime self-adaptation in service oriented systems.…”

Section: Related Workmentioning

confidence: 99%

QoS Analysis in Heterogeneous Choreography Interactions

Kattepur

Georgantas

Issarny

2013

Service-Oriented Computing

View full text Add to dashboard Cite

Abstract. With an increasing number of services and devices interacting in a decentralized manner, choreographies are an active area of investigation. The heterogeneous nature of interacting systems leads to choreographies that may not only include conventional services, but also sensor-actuator networks, databases and service feeds. Their middleware behavior within choreographies is captured through abstract interaction paradigms such as client-service, publish-subscribe and tuple space. In this paper, we study these heterogeneous interaction paradigms, connected through an eXtensible Service Bus proposed in the CHOReOS project. As the functioning of such choreographies is dependent on the Quality of Service (QoS) performance of participating entities, an intricate analysis of interaction paradigms and their effect on QoS metrics is needed. We study the composition of QoS metrics in heterogeneous choreographies, and the subsequent tradeoffs. This produces interesting insights such as selection of a particular system and its middleware during design time or end-to-end QoS expectation/guarantees during runtime. Non-parametric hypothesis tests are applied to systems, where QoS dependent services may be replaced at runtime to prevent deterioration in performance.

show abstract

Detecção de violações de SLA em coreografias de serviços Web

Diaz¹

View full text Add to dashboard Cite

Primeiramente eu quero agradecer à minha família. À minha mãe Saturnina, pelo grande e constante apoio apesar da distância. Ao meu pai Florentino, pela confiança que sempre deposita em mim. Ao meu irmão Fernando, porque ele também é um bom amigo. Aos meus tios, avós, primos, obrigado a todos vocês pelo carinho e afeto que sempre me dão. Gostaria de expressar meus sinceros agradecimentos ao meu orientador Daniel Macêdo Batista. Ele é uma ótima pessoa, excelente orientador e bom amigo. Eu agradeço ao Daniel por todas as dicas, palavras e principalmente por acreditar em mim. Durante todo este período de mestrado, não somente aprendi e obtive conhecimento da área. Neste anos eu conheci ótimas pessoas, as quais são de diversas cidades, países, culturas e costumes que ampliaram minha visão do mundo. Estou agradecido e fico muito contente de tê-las como boas amizades.

show abstract

A methodology to define QoS and SLA requirements in service choreographies

Cited by 3 publications

References 12 publications

QoS Composition and Analysis in Reconfigurable Web Services Choreographies

QoS Composition and Analysis in Reconfigurable Web Services Choreographies

QoS Analysis in Heterogeneous Choreography Interactions

Detecção de violações de SLA em coreografias de serviços Web

Contact Info

Product

Resources

About