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 ® for videos, step-by-step examples, how-to articles, or to shop! 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 spine=.72” www.it-ebooks.info spine=.72” Mobile Apps There’s a Dummies App for This and That With more than 200 million books in print and over 1,600 unique titles, Dummies is a global leader in how-to information. Now you can get the same great Dummies information in an App. With topics such as Wine, Spanish, Digital Photography, Certification, and more, you’ll have instant access to the topics you need to know in a format you can trust. To get information on all our Dummies apps, visit the following: www.Dummies.com/go/mobile from your computer. www.Dummies.com/go/iphone/apps from your phone. Start with FREE Cheat Sheets Cheat Sheets include • Checklists • Charts • Common Instructions • And Other Good Stuff! Get Smart at Dummies.com Dummies.com makes your life easier with 1,000s of answers on everything from removing wallpaper to using the latest version of Windows. Check out our • Videos • Illustrated Articles • Step-by-Step Instructions Plus, each month you can win valuable prizes by entering our Dummies.com sweepstakes. * Want a weekly dose of Dummies? 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Cook IT Architecture FOR DUMmIES ‰ 01_554234-ffirs.indd iii01_554234-ffirs.indd iii 10/1/10 9:35 PM10/1/10 9:35 PM www.it-ebooks.info 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 permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. 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Library of Congress Control Number: 2010937819 ISBN: 978-0-470-55423-4 Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 01_554234-ffirs.indd iv01_554234-ffirs.indd iv 10/1/10 9:35 PM10/1/10 9:35 PM www.it-ebooks.info 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. 01_554234-ffirs.indd v01_554234-ffirs.indd v 10/1/10 9:35 PM10/1/10 9:35 PM www.it-ebooks.info 01_554234-ffirs.indd vi01_554234-ffirs.indd vi 10/1/10 9:35 PM10/1/10 9:35 PM www.it-ebooks.info 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. 01_554234-ffirs.indd vii01_554234-ffirs.indd vii 10/1/10 9:35 PM10/1/10 9:35 PM www.it-ebooks.info 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 01_554234-ffirs.indd viii01_554234-ffirs.indd viii 10/1/10 9:35 PM10/1/10 9:35 PM www.it-ebooks.info [...]... 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 www .dummies. com/cheatsheet/itarchitecture www .it- ebooks.info IT Architecture FOR DUMmIES ‰ 01_554234-ffirs.indd. Cook IT Architecture FOR DUMmIES ‰ 01_554234-ffirs.indd iii01_554234-ffirs.indd iii 10/1/10 9:35 PM10/1/10 9:35 PM www .it- ebooks.info IT Architecture For Dummies ®