---
abstract: "We present an architecture of a hosting system consisting of a set of hosted Web Services subject to QoS constraints, and a certain number of servers used to run users demand. The traffic is session-based, while provider and users\r\nagree on SLAs specifying the expected level of service performance such that the service provider is liable to compensate his/her customers if the level of performance\r\nis not satisfactory. The system is driven by a utility function which tries to optimize the average earned revenue per unit time. The middleware collects demand and performance statistics, and estimates traffic parameters in order to make dynamic decisions concerning server allocation and admission control. We empirically evaluate the effects of admission policies, resource allocation and\r\nservice differentiation schemes on the achieved revenues, and we find that our system is robust enough to successfully deal with session-based traffic under different\r\nconditions."
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creators_name:
  - family: Michele
    given: Mazzucco
    honourific: ''
    lineage: ''
  - family: 'Manuel '
    given: Mazzara
    honourific: ''
    lineage: ''
  - family: Nicola
    given: Dragoni
    honourific: ''
    lineage: ''
data_type: ~
date: ~
date_type: ~
datestamp: 2010-07-01 11:51:57
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dir: disk0/00/00/02/33
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eprint_status: archive
eprintid: 233
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event_location: 'Copenhagen, Denmark'
event_title: 4th Nordic Workshop on Dependability and Security (NODES 2010)
event_type: workshop
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fileinfo: /style/images/fileicons/application_pdf.png;/233/1/Design_of_QoS%2Daware_Provisioning_Systems.pdf
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lastmod: 2011-04-05 15:07:01
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refereed: TRUE
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relation_uri: []
rev_number: 16
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skill_areas: []
source: ~
status_changed: 2010-07-01 11:51:57
subjects:
  - deploy_method_resil
succeeds: ~
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thesis_type: ~
title: Design of QoS-aware Provisioning Systems
type: conference_item
userid: 217
volume: ~