DocumentCode :
3340052
Title :
Quality of service (QoS): a model for information
Author :
Lawrence, Thomas F.
Author_Institution :
Air Force Res. Lab., Rome, USA
fYear :
1999
fDate :
1999
Firstpage :
180
Lastpage :
183
Abstract :
A unifying quantitative information model is proposed. This model defines information in terms of the attributes of timeliness, precision, and accuracy. Each attribute can be expressed in terms of measurable quantities (metrics). Information is application dependent and is expressed as benefit (utility or value) an attribute imparts to the application. Thus information is a function of timeliness, precision, and accuracy. Statistical values of these attributes can be used to express dependability (i.e. information availability). The purpose of the model is to give quantitative expression to information and system properties, to provide a basis for characterizing system modules, and to stimulate development of analytical techniques for predicting end-to-end quality of service in complex distributed information systems
Keywords :
distributed databases; information systems; object-oriented databases; quality of service; real-time systems; accuracy; complex distributed information system; dependability; distributed databases; end-to-end quality of service; information availability; measurable quantities; metrics; object oriented databases; precision; quality of service; quantitative information model; real time systems; system modules; timeliness; Real time systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Object-Oriented Real-Time Dependable Systems, 1999. Proceedings. Fourth International Workshop on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-7803-5579-2
Type :
conf
DOI :
10.1109/WORDS.1999.806579
Filename :
806579
Link To Document :
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