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Probabilistic QoS and Soft Contracts for Transaction-Based Web Services Orchestrations

Sidney Rosario, Albert Benveniste, Stefan Haar, Claude Jard
2008 IEEE Transactions on Services Computing  
In this paper, we propose using soft probabilistic contracts instead, which consist of a probability distribution for the considered QoS parameter-in this paper, we focus on timing.  ...  For composite services like orchestrations, such contracts are deduced by a process called QoS contract composition, based on contracts established between the orchestration and the called Web services  ...  If a combined executable functional-and-QoS model of the orchestration is available, it is then possible to compute the probability distribution of the same QoS parameter for the orchestration.  ... 
doi:10.1109/tsc.2008.17 fatcat:t524x7pvmjhy7csnldaz26l3eu

Probabilistic QoS and soft contracts for transaction based Web services

Sidney Rosario, Albert Benveniste, Stefan Haar, Claude Jard
2007 IEEE International Conference on Web Services (ICWS 2007)  
In this paper we propose using soft probabilistic contracts instead, which consist of a probability distribution for the considered QoS parameter-in this paper, we focus on timing.  ...  For composite services like orchestrations, such contracts are deduced by a process called QoS contract composition, based on contracts established between the orchestration and the called web services  ...  If a combined executable functional-and-QoS model of the orchestration is available, it is then possible to compute the probability distribution of the same QoS parameter, for the orchestration.  ... 
doi:10.1109/icws.2007.144 dblp:conf/icws/RosarioBHJ07 fatcat:w4mshfhttzasxo32wooqdhnxii

An Autonomic Monitoring Framework for QoS Management in Multi-service Networks [chapter]

Constantinos Marinos, Christos Argyropoulos, Mary Grammatikou, Vasilis Maglaris
2011 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
In this work, we present an autonomic monitoring framework for Quality of Service (QoS) management in multi-service networks.  ...  Autonomic monitoring procedures in multi-service networks provide not only feedback to end users, but also self-handling monitoring events to network operators.  ...  This paper was partially supported by EFIPSANS project (INFSO-ICT-215549) of the European Union's 7 th Framework Programme for Research & Technological Development.  ... 
doi:10.1007/978-3-642-21444-8_8 fatcat:rp5cvxsx4jc5zn4pa2rvxdanq4

Importance Sampling of Probabilistic Contracts in Web Services [chapter]

Ajay Kattepur
2011 Lecture Notes in Computer Science  
Moreover, the extreme values in case of heavy-tailed distributions (eg. 99.99 percentile) are seldom observed through limited sampling schemes.  ...  With web services quality of service (QoS) modeled as random variables, the accuracy of sampled values for precise service level agreements (SLAs) come into question.  ...  A series of experiments to evaluate different sampling techniques in an online environment is studied.  ... 
doi:10.1007/978-3-642-25535-9_41 fatcat:m6az2sdmkbgelo4a6mryxd6oy4

Fog Orchestration for Internet of Things Services

Zhenyu Wen, Renyu Yang, Peter Garraghan, Tao Lin, Jie Xu, Michael Rovatsos
2017 IEEE Internet Computing  
The orchestration of such applications can be leveraged to alleviate the difficulties of maintenance and enhance data security and system reliability.  ...  Additionally, we present early experiences of an orchestration scenario, demonstrating the feasibility and initial results of using a distributed genetic algorithm in this context.  ...  Orchestration is a key concept within distributed systems, enabling the alignment of deployed applications with users' business interests.  ... 
doi:10.1109/mic.2017.36 fatcat:5rvkwbrvj5cb5bamhlnztrwqy4

A Publish/Subscribe Qos-Aware Framework For Massive Iot Traffic Orchestration

Pedro Francesco Moraes, Rafael F. Reale, Joberto S. B. Martins
2018 Zenodo  
In this paper, it is proposed a Publish/Subscribe (PubSub) quality of service (QoS) aware framework (PSIoT-Orch) that orchestrates IoT traffic and allocates network resources between aggregates and consumers  ...  The proposed framework aims at gathering the inherent advantages of an ICN-centric approach using a PubSub message scheme while allocating resources efficiently keeping QoS awareness and handling restricted  ...  Figure 6 shows the buffer states for the aggregators as well as the allocated bandwidth by the orchestrator for each QoS level, according to each of the main events.  ... 
doi:10.5281/zenodo.1098297 fatcat:4hve2klhrzckpprjowjuflq7me

A Multi-Tier Fog Content Orchestrator Mechanism with Quality of Experience Support

Hugo Santos, Derian Alencar, Rodolfo Meneguette, Denis Rosário, Jéferson Nobre, Cristiano Both, Eduardo Cerqueira, Torsten Braun
2020 Computer Networks  
Video-on-Demand (VoD) services create a demand for content orchestrator mechanisms to support Quality of Experience (QoE).  ...  In this article, we introduce a content orchestrator mechanism, called of Fog4Video, which chooses an appropriate fog node to download video content.  ...  We also identify gaps in the literature, leading to design a content orchestrator mechanism in multi-layered and distributed fog systems. Byers et al.  ... 
doi:10.1016/j.comnet.2020.107288 fatcat:kfcz76tz5fhd5onk33r54e22ma

QoS-as-a-Service in the local cloud

Luis Lino Ferreira, Michele Albano, Jerker Delsing
2016 2016 IEEE 21st International Conference on Emerging Technologies and Factory Automation (ETFA)  
This paper presents an architecture that supports Quality of Service (QoS) in an Arrowhead-compliant System of Systems (SoS).  ...  To fulfil this objective we start by describing the Arrowhead architecture and the components needed to dynamically in run-time negotiate a system configuration that guarantees the QoS requirements between  ...  Violation of QoS requirements and its status is disseminated using the Event Handler system. F.  ... 
doi:10.1109/etfa.2016.7733699 dblp:conf/etfa/FerreiraAD16 fatcat:jdhtygiorvf3zkw6tv42orbuoa

Exploring the impact of inaccuracy and imprecision of QoS assumptions on proactive constraint-based QoS prediction for service orchestrations

Dragan Ivanovic, Manuel Carro, Manuel Hermenegildo
2012 2012 4th International Workshop on Principles of Engineering Service-Oriented Systems (PESOS)  
It uses assumptions about the ranges of QoS values for component services in the orchestration.  ...  Constraint-based Quality of Service (QoS) prediction is a method for predicting violations of Service Level Agreements (SLAs) in an executing instance of a service orchestration.  ...  Sammodi of the Ruhr Institute for Software Technology (Paluno) for suggesting the metrics used for evaluating the quality of the constraintbased prediction.  ... 
doi:10.1109/pesos.2012.6225936 dblp:conf/icse/IvanovicCH12 fatcat:t3zxi3rmhbcu3lgbvqegxo2exq

SDFog: A Software Defined Computing Architecture for QoS Aware Service Orchestration over Edge Devices [article]

Harshit Gupta, Shubha Brata Nath, Sandip Chakraborty, Soumya K. Ghosh
2016 arXiv   pre-print
The proposed system, called "Software Defined Fog" (SDFog), abstracts connected entities as services and allows applications to orchestrate these services with end-to-end QoS requirements.  ...  A use-case showing the necessity of such a middleware has been presented to show the efficacy of the SDN-based QoS control over the Fog.  ...  The proposed system performs QoS aware orchestration by scheduling flows between services that satisfy specified QoS constraints.  ... 
arXiv:1609.01190v1 fatcat:iina4oeli5dbpnzqocvob3ib24

Illustrated Technical Paper - A Pub/Sub SDN-Integrated Framework for IoT Traffic Orchestration

Pedro F. Moraes, Joberto S. B. Martins
2019 Zenodo  
This "ILLUSTRATED TECHNICAL PAPER" presents the slides describing the contents of the paper "A Pub/Sub SDN-Integrated Framework for IoT Traffic Orchestration".  ...  The talk was presented at the 3rd International Conference on Future Networks and Distributed Systems - ICFNDS 2019, 1 - 2 July 2019 at Paris, France.  ...  the link load at each simulation event.  ... 
doi:10.5281/zenodo.3359648 fatcat:msthzhyvwvgb5n5husj5brdaji

On Providing Multi-Level Quality of Service for Operating Rooms of the Future

Vinicius Facco Rodrigues, Rodrigo da Rosa Righi, Cristiano André da Costa, Björn Eskofier, Andreas Maier
2019 Sensors  
Our main contributions are a middleware model and an orchestration engine in charge of changing the middleware behavior to guarantee performance.  ...  (QoS) demands.  ...  Conflicts of Interest: The authors declare no conflict of interest. Sensors 2019, 19, 2303  ... 
doi:10.3390/s19102303 fatcat:4swwakgmfnathcllooc6fhzrvy

A Publish/Subscribe QoS-aware Framework for Massive IoT Traffic Orchestration [article]

Pedro Moraes, Rafael Reale, Joberto Martins
2018 Zenodo   pre-print
In this paper, it is proposed a Publish/-Subscribe (PubSub) quality of service (QoS) aware framework (PSIoT-Orch) that orchestrates IoT traffic and allocates network resources between aggregates and consumers  ...  The proposed framework aims at gathering the inherent advantages of an ICN-centric approach using a PubSub message scheme while allocating resources efficiently keeping QoS awareness and handling restricted  ...  While the framework's orchestration isn't distributed, the failure of the orchestration component would not entail in the failure of the IoTGw-Ag data delivery, since they maintain the set of predefined  ... 
doi:10.5281/zenodo.1098298 arXiv:1806.03157v1 fatcat:u5dwk63eerbchgjatrpqydmo7i

Network orchestration in reliable 5G/NFV/SDN infrastructures

B. Martini, M. Gharbaoui, S. Fichera, P. Castoldi
2017 2017 19th International Conference on Transparent Optical Networks (ICTON)  
QoS performance of service data flows.  ...  We present an SDN orchestrator that periodically monitors the availability of the network and, if necessary, promptly adapts service chain paths to recover from congestion events and to preserve network  ...  The evaluation of the SDN orchestrator is provided in terms of average RTT and redirection time.  ... 
doi:10.1109/icton.2017.8024937 fatcat:6cph4ckzbrewff625bw7z6kmbu

Cross-Domain Network Slicing For Industrial Applications

Vasileios Theodorou, Konstantinos V. Katsaros, Andreas Roos, Ermin Sakic, Vivek Kulkarni
2018 Zenodo  
Towards these requirements, network slicing mechanisms allow the management and orchestration of the underlying pool of resources, typically within a single administrative domain.  ...  for cross-domain orchestration.  ...  The QoS-Orchestrator evaluates this information and computes a path based on up-to-date path segment information from each intermediate NSP SDN domain controller.  ... 
doi:10.5281/zenodo.1403997 fatcat:jsuf6yrogzgpjgo5j2jn3fldni
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