Butterworth-Heinemann
Linacre House, Jordan Hill, Oxford OX2 8DP
225 Wildwood Avenue, Woburn, MA 01801 2041
A division of Reed Educational and Professional Publishing Ltd

A member of the Reed Elsevier plc group

First published 2001

All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England W1P 9HE. Applications for the copyright holder s written permission to reproduce any part of this publication should be addressed to the publishers

British Library Cataloguing in Publication Data
A catalogue record for this book is available from the British Library

ISBN 0 7506 48627

Composition by Genesis Typesetting, Rochester, Kent

Acknowledgements

Thank you, book. You taught me about challenge, patience, completeness, and systems. At four in the morning you were there for me (alas). But through all the difficulties we faced, you remained my friend.

Thanks to Prof. Dan Remenyi, who cajoled me into putting my ideas down. His final threat: If you don t write the book, I will! galvanised me into action.

Thanks...