Quality of service for workflows and web service processes

Cardoso, Jorge; Sheth, Amit P.; Miller, John A.; Arnold, Jonathan; Kochut, Krys J.

doi:10.1016/j.websem.2004.03.001

Cited by 742 publications

(319 citation statements)

References 46 publications

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“…The cost c iJ is simply the sum of the cost of the invoked services, since for each invocation of i all the concrete service in J are invoked. The QoS attributes for the composed services can be computed by properly aggregating the corresponding QoS attributes of the constituend services i [24]. Since the cost and (logarithm of the) dependability are additive [24] QoS metrics, for their expected value we simply obtain…”

Section: Composite Service Qos Metricsmentioning

confidence: 99%

Towards Self-adaptation for Dependable Service-Oriented Systems

Cardellini

Casalicchio

Grassi

et al. 2009

Architecting Dependable Systems VI

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Abstract. Increasingly complex information systems operating in dynamic environments ask for management policies able to deal intelligently and autonomously with problems and tasks. An attempt to deal with these aspects can be found in the Service-Oriented Architecture (SOA) paradigm that foresees the creation of business applications from independently developed services, where services and applications build up complex dependencies. Therefore the dependability of SOA systems strongly depends on their ability to self-manage and adapt themselves to cope with changes in the operating conditions and to meet the required dependability with a minimum of resources. In this paper we propose a model-based approach to the realization of self-adaptable SOA systems, aimed at the fulfillment of dependability requirements. Specifically, we provide a methodology driving the system adaptation and we discuss the architectural issues related to its implementation. To bring this approach to fruition, we developed a prototype tool and we show the results that can be achieved with a simple example.

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Section: Composite Service Qos Metricsmentioning

confidence: 99%

Towards Self-adaptation for Dependable Service-Oriented Systems

Cardellini

Casalicchio

Grassi

et al. 2009

Architecting Dependable Systems VI

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“…It is also an important Quality of Services measure for web services [18][19][20][21] and is one of the trade-off considerations for grid and cloud computing [22][23][24].…”

Section: Related Workmentioning

confidence: 99%

Realisation of Cost-Informed Process Support Within the YAWL Workflow Environment

Adams

Wynn

Ouyang

et al. 2015

Lecture Notes in Business Information Processing

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Abstract. Organisations are always focussed on ensuring that their business operations are performed in the most cost-effective manner, and that processes are responsive to ever-changing cost pressures. In many organisations, however, strategic cost-based decisions at the managerial level are not directly or quickly translatable to process-level operational support. A primary reason for this disconnect is the limited system-based support for cost-informed decisions at the process-operational level in real time. In this paper, we describe the different ways in which a workflow management system can support process-related decisions, guided by cost-informed considerations at the operational level, during execution. As a result, cost information is elevated from its non-functional attribute role to a first-class, fully functional process perspective. The paper defines success criteria that a WfMS should meet to provide such support, and discusses a reference implementation within the YAWL workflow environment that demonstrates how the various types of costinformed decision rules are supported, using an illustrative example.

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“…Examples include: QoS (Quality of Service) based analysis for service compositions [12], analysis of time constraints based on Petri Nets [24] and soundness checks [22] for BPEL orchestrations. Furthermore, tools such eflow [11] by Fabio Casati have addressed issues with dynamic service compositions.…”

Section: Related Workmentioning

confidence: 99%

Model-Based Assistance for Making Time/Fidelity Trade-Offs in Component Compositions

Dwivedi

Garlan

Schmerl

2014

2014 11th International Conference on Information Technology: New Generations

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Abstract-In many scientific fields, simulations and analyses require compositions of computational entities such as webservices, programs, and applications. In such fields, users may want various trade-offs between different qualities. Examples include: (i) performing a quick approximation vs. an accurate, but slower, experiment, (ii) using local slower execution environments vs. remote, but advanced, computing facilities, (iii) using quicker approximation algorithms vs. computationally expensive algorithms with smaller data. However, such trade-offs are difficult to make as many such decisions today are either (a) wired into a fixed configuration and cannot be changed, or (b) require detailed systems knowledge and experimentation to determine what configuration to use. In this paper we propose an approach that uses architectural models coupled with automated design space generation for making fidelity and timeliness trade-offs. We illustrate this approach through an example in the intelligence analysis domain.

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Quality of service for workflows and web service processes

Cited by 742 publications

References 46 publications

Towards Self-adaptation for Dependable Service-Oriented Systems

Towards Self-adaptation for Dependable Service-Oriented Systems

Realisation of Cost-Informed Process Support Within the YAWL Workflow Environment

Model-Based Assistance for Making Time/Fidelity Trade-Offs in Component Compositions

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