Dino Esposito - Microsoft .NET - Architecting Applications for the Enterprise (2nd Edition)

Architecting Applications for the Enterprise, Second Edition

Dino Esposito
Andrea Saltarello

PUBLISHED BY
Microsoft Press
A Division of Microsoft Corporation
One Microsoft Way
Redmond, Washington 98052-6399

Copyright 2014 by Dino Esposito and Andrea Saltarello

All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without the written permission of the publisher.

Library of Congress Control Number: 2014940680
ISBN: 978-0-7356-8535-2

Printed and bound in the United States of America.

Second Printing: January 2015

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Acquisitions and Developmental Editor: Devon Musgrave
Project Editor: Carol Dilllingham
Editorial Production: Waypoint Press, www.waypointpress.com
Peer Reviewer: Cesar De la Torre Llorente
Copyeditor: Roger LeBlanc
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Cover: Twist Creative Seattle and Joel Panchot

To my wife Silvia. You make me feel sandy like a clepsydra. I get empty and filled all the time; but its such a thin kind of sand that even when Im full, without you, I just feel empty.

DINO

To Laura, mum, and Depeche Mode. Moved, lifted higher. Moved, by a higher love.

ANDREA

Good judgment comes from experience, and experience comes from bad judgment.

Fred Brooks

We find that the preceding quote contains the essence of software architecture and the gist of the architects role. Software architecture requires judgment because not all scenarios are the same. To exercise sound judgment, you need experience, and in this imperfect world, experience mostly comes from making some mistakes and bad choicesfrom bad judgment.

However, the world we live in often doesnt give you the opportunity (or even the time) to form your own experience-based knowledge from which good judgment is developed. More often than not, all that executives want from architects is the right architecture right away.

Weve written this book primarily to endow you with a solid, reusable, and easily accessible base of knowledge about software architecture. In past years, weve completed projects using technologies like Microsoft Windows DNA, Distributed COM, multitier CRUD, SOA, DDD, CQRS, and event sourcing. Weve used Microsoft Visual Basic 6 as well as C#, C++, Java, and JavaScript. Weve seen technical solutions change frequently and perspectives about these approaches also evolve.

In the end, we came to the same conclusion as Fred Brooks. We dont wear white coats, were not doctors, and were not writing prescriptions. Our purpose here is to aggregate various positions, add our own annotations and comments to those positions, and generate an honest summary of facts and perspectives.

In these times in which developers and architects are asked to do it right and right away, we offer a snapshot of knowledgea readymade software architects digest for you to use as the starting point for further investigation and to use to build up your own judgment. If software architecture were a theorem, this book (we hope) would provide a collection of necessary lemmas.