F. Siqueira and V. Cahill. Quartz: A qos architecture for open systems. In Proceedings of IEEE International Conference on Distributed Computing Systems (ICDCS 2000. Home/Search Document Details and Download
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Using the Timely Computing Base for Dependable QoS Adaptation - Casimiro, Veríssimo (2001) (2 citations) (Correct)
....Work The provision of quality of service (QoS) guarantees in open environments, such as the internet, is currently an active field of research. In fact, although there is a lot of work dealing with the problem of QoS provision in environments where resources are known and can be controlled [28, 24, 31, 18, 6], no systematic solution has been proposed for environments where there is no knowledge about the amount of available resources. In particular, and as far as we know, there is not a generic system model that adequately characterizes these kind of unpredictable environments, which can be used to ....
....models, with QoS specification and mapping and with dynamic adaptation. For instance, 23] and [11] use benefit functions specified by the application as a way to optimize resource management. Several middleware architectures can be found. For instance, they deal with heterogeneous environments [24], they propose control based solutions [19] or they use resource brokers to manage system resources [31] A discussion about the main issues concerning QoS constrained communication can be found in [30] and a comprehensive survey about end to end QoS architectures can be found in [3] We should ....
F. Siqueira and V. Cahill. Quartz: A QoS architecture for open systems. In Proceedings of IEEE International Conference on Distributed Computing Systems (ICDCS 2000), pages 197--204, Taipei, Taiwan, April 2000.
An Open QoS Architecture for CORBA Applications - Siqueira, Cahill (2000) (1 citation) Self-citation (Siqueira Cahill) (Correct)
....of different networking infrastructures and operating systems. Quartz is a generic architecture for the specification and enforcement of QoS that provides mechanisms necessary for building applications with QoS requirements in open systems. 3.1. Overview of Quartz The Quartz QoS architecture [6] is composed of a QoS Agent running on top of the several resource reservation protocols available in the target system. QoS applications use the services provided by the QoS Agent to obtain the desired level of QoS. Application Level Middleware Level Underlying System Network Resources ....
F. Siqueira and V. Cahill "Quartz: A QoS Architecture for Open Systems", Proceedings of the 20 th IEEE International Conference on Distributed Computing Systems (to appear), 2000.
Quartz: A QoS Architecture for Open Systems - Siqueira, Cahill (1999) (2 citations) Self-citation (Siqueira) (Correct)
....the available reservation mechanisms in order to make use of the architecture, while a higher level of transparency would be more appropriate for the user. Furthermore, in most architectures support for resource adaptation is very limited, if not completely absent. In this paper we present Quartz [6], a generic QoS architecture that addresses the limitations of previous proposals in this area. This is achieved by adopting a highly flexible, extensible, component based platformindependent design, which supports user transparency from the underlying system and at the same time is suitable for ....
F. Siqueira "Quartz: A QoS Architecture for Open Systems", Ph.D. Thesis, Dept. of Comp. Science, Trinity College Dublin, December 1999.
Delivering QoS in Open Distributed Systems - Siqueira, Cahill (1999) (1 citation) Self-citation (Siqueira) (Correct)
....the specification of QoS requirements and lack transparency from the lower level, forcing the user to deal with a notion of QoS that is not familiar for him. Furthermore, in most architectures support for resource adaptation is very limited, if not completely absent. This paper presents Quartz [3][4], a generic QoS architecture that addresses the limitations of previous proposals in this area. This is achieved by adopting a highly flexible, extensible, component based platformindependent design, which allows user transparency from the underlying system and at the same time is suitable for ....
....the network. The prototype developed by us has system agents and filters for the RSVP protocol, for ATM networks, and for the real time mechanisms provided by Windows NT. 3.1. Validation and evaluation We have implemented a few applications on top of Quartz in order to evaluate its behaviour [4]. One of these applications is a simple program that transfers data packets over the network. This application is able to use either TCP, UDP (including multicast) or ATM for transferring data. Quartz was used as a means for reserving resources for both network supports without adding complexity ....
F. Siqueira "Quartz: A QoS Architecture for Open Systems", Ph.D. Thesis (submitted), Trinity College, University of Dublin, October 1999.
Using the Timely Computing Base - For Dependable Qos (Correct)
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F. Siqueira and V. Cahill. Quartz: A qos architecture for open systems. In Proceedings of IEEE International Conference on Distributed Computing Systems (ICDCS 2000.
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