Dave Rayner

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During the 1970ies and '80ies, the first computer communication networks were designed and implemented in the research and commercial sectors. Many of the protocols developed during that time are still in use today. This paper starts by giving an overview of these developments. Then it concentrates on the development of protocol engineering, that is, the(More)
Models are used in metrology to characterise measurement data and, where appropriate, the process which produced that data. Indeed, modelling is a procedure designed to extract information from data. Therefore, for any proposed model, the question then arises: is the information provided by the model comprehensive and reliable? This question is resolved by(More)
This report describes three case studies of the testing of continuous modelling software. Where possible, the testing has been conducted by following the methodology outlined in the SSfM report " Testing Continuous Modelling Software " [1]. Where following this methodology has not been possible, the advice on alternative testing methods in the report [1](More)
Many experiments in metrology involve the use of instruments or measuring systems that measure values of a response variable corresponding to given values of a stimulus variable. The calibration of such instruments requires using a set of measurements of stimulus and response variables, along with their associated uncertainties, to determine estimates of(More)
This report addresses issues connected with uncertainties and visualisation in continuous modelling. Many continuous modelling packages, particularly finite element (FE) and continuous fluid dynamics (CFD) packages, produce impressive graphical outputs. These outputs can easily lull the viewer into a false sense of security, and lead the viewer to forget(More)
This report sets out the conclusions of a study into the metrology requirements of Digital Signal Processing (DSP) that will be needed to meet future challenges within the National Measurement System (NMS). It forms part of the " New Directions " project, within Theme 5 of the current Software Support for Metrology programme. The intention is that the(More)
New developments in applied mathematics and computing are reviewed to identify the research that will be needed to meet future challenges within the National Measurement System. Topics under review include simulation, modelling over more than one length scale, molecular modelling, distributed computing, parallel coordinate systems, risk and uncertainty, and(More)
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