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Kalani Kirk Hausman
Susan L. Cook
Learn to:
• Create an Enterprise IT strategy
that meets business objectives
• Work with each layer of the
technology stack
• Support organizational structure
and processes
• Develop an action plan for
implementation
IT Architecture
Making Everything Easier!
™
Open the book and find:
• Tasks, roles, and tools of IT
architecture
• Risk and compliance issues for
management
• Tips for reducing complexity
• Identity and access management
strategies
• Effective communication methods
• How to plan for the mobile
enterprise
• When green is profitable
• What to consider when planning
technology updates
Kalani Kirk Hausman is a specialist in enterprise architecture, security,
information assurance, business continuity, and regulatory compliance.
Susan L. Cook is a Senior IT Policy and Security Programs Administrator
and a former compliance auditor. Both are employed by Texas A&M
University.
$34.99 US / $41.99 CN / £24.99 UK
ISBN 978-0-470-55423-4
Enterprise Applications/General
Go to Dummies.com
®
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Get a handle on enterprise
architecture and develop
a strategy for success
An enterprise network is a complex creature. This book
breaks it down into simpler bites. You’ll understand the
parts, what they mean to your company, how to make
technology match your business goals, and how to create
an enterprise culture. Then you’ll get help with long-term
planning, managing security, and getting the most from
your technology.
• Know the game and the players — understand enterprise
components, the management roles involved, and the impact
of platform selection
• What IT can do — learn to align technology with organizational
goals and explore regulatory compliance and risk management
practices
• Who you are — examine the fundamental aspects of identity
management and how to develop an enterprise culture
• Nuts and bolts — look at the elements of a distributed network,
its resources, and how to establish long-term operational
strategies
• Increase technology’s value — through virtualization, high-
performance computing, Green IT strategies, and other practices
• Keep your guard up — create effective disaster recovery solutions
and develop a sound game plan against the ever-changing threats
to interconnected systems
IT Architecture
Hausman
Cook
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IT Architecture
FOR
DUMmIES
‰
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by Kalani Kirk Hausman
and Susan L. Cook
IT Architecture
FOR
DUMmIES
‰
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IT Architecture For Dummies
®
Published by
Wiley Publishing, Inc.
111 River Street
Hoboken, NJ 07030-5774
www.wiley.com
Copyright © 2011 by Wiley Publishing, Inc., Indianapolis, Indiana
Published by Wiley Publishing, Inc., Indianapolis, Indiana
Published simultaneously in Canada
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or
by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permit-
ted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written
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Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley
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www.wiley.com/go/permissions.
Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the
Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, Making Everything
Easier,
and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/
or its af liates in the United States and other countries, and may not be used without written permission.
All other trademarks are the property of their respective owners. Wiley Publishing, Inc., is not associated
with any product or vendor mentioned in this book.
LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: THE PUBLISHER AND THE AUTHOR MAKE NO
REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF
THE CONTENTS OF THIS WORK AND SPECIFICALLY DISCLAIM ALL WARRANTIES, INCLUDING WITH-
OUT LIMITATION WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. NO WARRANTY MAY BE
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FURTHER, READERS SHOULD BE AWARE THAT INTERNET WEBSITES LISTED IN THIS WORK MAY HAVE
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For general information on our other products and services, please contact our Customer Care
Department within the U.S. at 877-762-2974, outside the U.S. at 317-572-3993, or fax 317-572-4002.
For technical support, please visit www.wiley.com/techsupport.
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Library of Congress Control Number: 2010937819
ISBN: 978-0-470-55423-4
Manufactured in the United States of America
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About the Authors
Kalani Kirk Hausman is employed as an Assistant Commandant at Texas A&M
University and specializes in enterprise architecture, security, information
assurance, business continuity, and regulatory compliance. His background
includes varied topics from digital forensics and WMD response, pandemic
response planning, technology audit practices, and IT governance strategies.
His experience includes application design, data resource management, net-
work architecture, server and storage virtualization, strategic technology
modernization, network and backup centralization, research computing,
and large network BCP/DR planning. With a Master’s degree in Information
Technology, Kirk has served as a senior research scientist in the elds of
cyber terrorism, cybercrime, and cyber security, and he regularly lectures
on uses of technology in education, solutions for persons with disabling
conditions, and strategic architectural planning to improve enterprise
ef ciencies. Kirk’s professional certi cations include the CISSP, CGEIT,
CRISC, CISA, CISM, and CCP together with a wide assortment of technology-
and regulatory-speci c designations.
Susan L. Cook is a Senior IT Policy and Security Programs Administrator at
Texas A&M University, specializing in enterprise risk assessment and compli-
ance. She has a master’s degree in Information Technology, additional graduate
work in Security Management, and more than a decade of experience in the eld.
She has also worked as a compliance auditor in the nancial industry and as a
licensed private investigator.
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Dedication
This book is dedicated to the many talented IT professionals faced with sup-
porting enterprises in which the only constant is change.
Authors’ Acknowledgments
We would like to acknowledge the tremendous help in preparing this book
provided by the excellent editorial staff at Wiley, in particular our Project
Editor, Blair Pottenger; Development Editors, Kelly Ewing, Jodi Jensen, and
Kathy Simpson; Copy Editors, Teresa Artman and Maryann Steinhart; and
Tech Editor, Chris Leiter. Special thanks are also due to Katie Mohr, our
Acquisitions Editor for the Dummies series, and to our agent and all-around-
guide, Carole Jelen of Waterside Productions.
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Publisher’s Acknowledgments
We’re proud of this book; please send us your comments at http://dummies.custhelp.com.
For other comments, please contact our Customer Care Department within the U.S. at 877-762-2974,
outside the U.S. at 317-572-3993, or fax 317-572-4002.
Some of the people who helped bring this book to market include the following:
Acquisitions and Editorial
Project Editor: Blair J. Pottenger
Development Editors: Kelly Ewing, Jodi Jensen,
Kathy Simpson
Acquisitions Editor: Katie Mohr
Copy Editors: Teresa Artman,
Maryann Steinhart
Technical Editor: Chris Leiter
Editorial Manager: Kevin Kirschner
Editorial Assistant: Amanda Graham
Sr. Editorial Assistant: Cherie Case
Cartoons: Rich Tennant
(www.the5thwave.com)
Composition Services
Senior Project Coordinator: Kristie Rees
Layout and Graphics: Carl Byers, Erin Zeltner
Proofreaders: Tricia Liebig, Lindsay Littrell
Indexer: BIM Indexing & Proofreading Services
Publishing and Editorial for Technology Dummies
Richard Swadley, Vice President and Executive Group Publisher
Andy Cummings, Vice President and Publisher
Mary Bednarek, Executive Acquisitions Director
Mary C. Corder, Editorial Director
Publishing for Consumer Dummies
Diane Graves Steele, Vice President and Publisher
Composition Services
Debbie Stailey, Director of Composition Services
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[...]... PM10/1/10 9:36 PM xii IT Architecture For Dummies Knowing the Roles of Enterprise Architecture 20 Chief architect 20 Lead architect 21 Technology architect 21 Software or application architect 21 Business architect 22 Data architect 22 Using the Right Tool for the Right Job 23 IT governance 24 Enterprise architecture frameworks... platforms ✓ Too many people with root access Too many resource silos In a traditional enterprise, it isn’t unusual for each business unit to maintain control over its own information systems, including servers, workstations, data, and even networking hardware Along with information systems, each unit also has its own technical personnel, makes its own purchases, and is responsible for backing up its... the Architecture 7 Chapter 1: Planning for Enterprise Realignment 9 Chapter 2: Exploring Tasks, Roles, and Tools 17 Chapter 3: Pondering Platform Pros and Cons 29 Part II: Defining the Role of IT Architecture 41 Chapter 4: Reducing Complexity through Standardization and Consolidation 43 Chapter 5: Planning Enterprise Information Security 65 Chapter 6: Complying with... straightforward, but another sign of successful enterprise architecture is that the organization sees it as valuable Because enterprise architecture can have a significant effect on your organization’s current and future capabilities and opportunities, your organization needs to be aware of the value provided by the architecture so that costs remain justifiable in the overall business plan www .it- ebooks.info... Developing the Architecture www .it- ebooks.info 04_554234-pp01.indd 704_554234-pp01.indd 7 10/1/10 9:37 PM10/1/10 9:37 PM T In this part his part offers a high-level overview of enterprise architecture If you’re not intimately acquainted with the topic of enterprise architecture, you may find this part particularly helpful In addition to covering basic concepts, we include guidelines for determining... Addressing Risk 89 Prioritizing threats 89 Reducing probability 90 Reducing impact 91 Choosing appropriate mitigations 92 www .it- ebooks.info 02_554234-ftoc.indd xiii02_554234-ftoc.indd xiii 10/1/10 9:36 PM10/1/10 9:36 PM xiv IT Architecture For Dummies Part III: Creating an Enterprise Culture 93 Chapter 7: Developing Identity and Access Management Strategies... although you can, if you want Either way, we hope that you walk away with dozens of ideas for improvements in your own setting, whether your server room is a converted broom closet or you support hundreds of thousands of users scattered around the globe www .it- ebooks.info 03_554234-intro.indd 503_554234-intro.indd 5 10/1/10 9:37 PM10/1/10 9:37 PM 6 IT Architecture For Dummies www .it- ebooks.info 03_554234-intro.indd... low-hanging fruit opportunities for quick savings or other proof of value to help develop executive support for additional changes Few enterprises lack such opportunities because technology and its uses tend to fall into stable practices users describe as “the way we’ve always done it rather than changing to adopt the best or most efficient ways About This Book This book is not a checklist for efficiency,... defines strategies for protecting resources and services within the enterprise network environment Part VII: The Part of Tens Part VII offers lists of ten useful items in enterprise architectural planning, together with references to areas of the book focusing on each Icons Used in This Book The familiar For Dummies icons offer visual clues about the material contained within this book Look for the following... functionality 53 Decreased productivity 54 Incompatibility with existing applications 54 Risk of technology monoculture 55 Preparing for opposition 55 www .it- ebooks.info 02_554234-ftoc.indd xii02_554234-ftoc.indd xii 10/1/10 9:36 PM10/1/10 9:36 PM Table of Contents xiii Consolidating the Data Center 56 Identifying the benefits 57 Reducing complexity . Sheet created specifically for this book, go to
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IT Architecture
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IT Architecture
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