Toggle Main Menu Toggle Search

Open Access padlockePrints

Value Inconsistencies due to Time Uncertainties

Lookup NU author(s): Dr Rogerio De Lemos, Dr Amer Saeed, Emeritus Professor Tom Anderson



In distributed real-time systems, to allow the system to have a notion of a global time, its components must have their clocks synchronised, which eventually results in time uncertainties between the components. In other words, an event external to the system may have different occurence times in the various components from which the system is made up. These time uncertainties can cause value uncertainties whenever any two components attempt to measure the same physical variable "at the same time". This paper discusses the type of errors which can be present in any measurement performed in either the time or value domains, and how these errors are related.

Publication metadata

Author(s): de Lemos R, Saeed A, Anderson T

Publication type: Report

Publication status: Published

Series Title: Computing Laboratory Technical Report Series

Year: 1991

Pages: 14

Print publication date: 01/11/1991

Source Publication Date: November 1991

Report Number: 360

Institution: Computing Laboratory, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne