Enterprise Archi tecture as Strategy Creating a Foundation for Business Execution Jeanne W. Ross Peter Weill David C. Robertson HARVARD BUSINESS SCHOOL PRESS BOSTON, MASSACHUSETTS Copyright 2006 Jeanne W. Ross, Peter Weill, and David C. Robertson All rights reserved Printed in the United States of America 10 09 OS 07 06 5 4 3 2 1 No part of this publication may be reproduced, stored in or introduced into a retrieval system, or transmitted, in any form, or by any means (electronic, me- chanical, photocopying, recording, or otherwise), without the prior permission of the publisher. Requests for permission should be directed to