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Modernizing Legacy Systems: Software Technologies, Engineering Processes, and Business Practices Software systems become legacy systems when they begin to resist modification and evolution. However, the knowledge embodied in legacy systems constitutes a significant corporate asset. Assuming that these systems still provide significant business value, they must then be modernized or replaced. This book describes a risk-managed approach to legacy system modernization that applies a knowledge of software technologies and an understanding of engineering processes within a business context. Audience Modernizing Legacy Systems: Software Technologies, Engineering Processes, and Business Practices should be useful to anyone involved in modernizing a legacy system. For a software engineer, the book should help you understand some of the larger business concerns that drive a modernization effort. For a software designer, this book should help you understand the impact of legacy code, coupled with incremental development and deployment practices, on design activities. For a system architect, this book explains the processes and techniques that have failed or succeeded in practice. It should also provide insight into how you can repeat these successes and avoid the failures. For an IT manager, this book explains how technology and business objectives influence the software modernization processes. In particular, the book should help you answer the following questions: When and how do I decide whether a modernization or replacement effort is justified? How do I develop an understanding of the legacy system? How do I gain an understanding of, and evaluate the applicability of, information system technologies that can be used in the modernization of my system? When do I involve the stakeholders, and how can I reconcile their conflicting needs? What role does architecture play in legacy system modernization? How can I estimate the cost of a legacy system modernization? How can I evaluate and select a modernization strategy? How can I develop a detailed modernization plan? Organization and Content Modernizing Legacy Systems: Software Technologies, Engineering Processes, and Business Practices shows how legacy systems can be incrementally modernized. It uses and extends the methods and techniques described in Building Systems from Commercial Components Wallnau 01 to draw on engineering expertise early in the conceptual phase to ensure realistic and comprehensive planning. This book features an extensive case study involving a major modernization effort. The legacy system in this case study consists of nearly 2 million lines of COBOL code developed over 30 years. The system is being replaced with a modern system based on the Java 2 Enterprise Edition (J2EE) architecture. Additional challenges include a requirement to incrementally develop and deploy the system. We look at the strategy used to modernize the system; the use of Enterprise JavaBeans, message-oriented middleware, Java, and other J2EE technologies to produce the modern system; the supporting software engineering processes and techniques; and the resulting system. Chapter 1 provides an introduction to the challenges and practices of software evolution. Chapter 2 introduces the major case study in the book. Chapter 3 introduces the risk-managed modernization (RMM) approach, which is elaborated in Chapters 4 through 17 and illustrated by the case study. At the beginning of Chapters 4 through 17, we provide an activity diagram of RMM as a road map to the chapter. Chapter 18 provides some recommendations to help guide your modernization efforts, although these recommendations cannot be fully appreciated without reading the main body of the book. Throughout this book, we use the Unified Modeling Language (UML) to represent architecture drawings and design patterns. A brief introduction to UML is provided in Chapter 6. Updated information, events, and news related to Modernizing Legacy Systems: Software Technologies, Engineering Processes, and Business Practices can be found at [a href=”http://www.sei.cmu.edu/cbs/mls” id=”http://www.sei.cmu.edu/cbs/mls”>http://www.sei.cmu.edu/cbs/mls. 0321118847P01242003
Customer Review: Excellent Overview
This book describes the process and technologies involved in updating a legacy system. Chapters 1 through 4 do a very good job of describing the problems inherent in working with legacy systems, which the authors define simply as having “code that was written yesterday.” I couldn’t agree more with their perspective. Once code is written, it needs to be maintained, updated, and managed, whether it is COBOL, Fortran, PowerBuilder or Java; all code becomes legacy code once it is written.

Early in the book, the authors present a Unified Modeling Language (UML) activity diagram to describe their proposed process for updating legacy systems. They then open each chapter by depicting where they are in the process — from Portfolio analysis completed (modernization candidates selected) to Modernization plan defined. The book defines ten main steps and two checkpoints for completing this process, including decision points to determine whether modernization is the correct choice.

To describe the process in detail, the authors follow a legacy system modernization project over the course of the book. As process experts from the Software Engineering Institute (SEI), they consulted on this project, which was to update and Web-enable a primarily COBOL retail supply system. The case study helps readers understand the flow of the process the authors recommend and brings reality to their suggestions, although at times they abandon the “story” and go into overly minute detail, discussing every process option they could have chosen. I would have liked them to focus more deeply on the option they did choose, and to discuss at greater length how to be successful with that option (or any other). A good example of this is the discussion in Chapter 4 around requirements. The authors do a good job of describing where to get requirements from, but never discuss good processes and techniques for gathering those requirements. In most situations I have been involved in around requirements, knowing where to go wasn’t much of a challenge, but knowing how to elicit them was.

The book does a good job of describing the different technologies the project used as well as others available for modernization efforts — Java/J2EE, Web Services, wrapper code, and different packaged systems — providing an overview of each technology as well as customized ways to write integrations from the legacy systems to modern ones. They discuss screen scrape technologies as well as screen rewrites, but focus mainly on modernizing the software. This was a little disappointing: Based on the title, I expected to see discussions of all the hardware, software, development processes and additional technologies involved in modernizing systems.

Overall, however, I learned a lot from the book, and it confirmed many of my beliefs about the importance of modernizing legacy systems and the best approaches to use. The authors provided good strategies for understanding systems that are already in place starting with the workflow they follow throughout the book. They then go into examples which include modeling, requirements management and the process they followed. What was a bit lacking is the actual process for implementation. The book focuses primarily on understanding what you have, designing for change, and planning how to get where you want to go, but it doesn’t go far enough into what you actually have to do to get there. I would recommend this book for people who need a better understanding of the processes and technology decisions you must make made when building software systems. For most of us in the industry, no matter what we are working on, there’s probably a legacy system involved in some way.

Start Your Own Business (Entrepreneur Magazine’s Start Up) Everything you need to start a successful business…except the money. (But we’ll show you how to get that, too!) Previous editions of this bestselling book have already helped hundreds of thousands of entrepreneurs achieve their dreams. Now, the revised and updated Third Edition is packed with additional advice on new topics, including: How to get new business ideas Secrets to getting government grants How the Internet can help you with marketing research, competitive intelligence, marketing, advertising and more. How PDA’s, cell phones, and other wireless devices can make your business more efficient Tips for starting a non-profit organization Updated “hot links” that direct you to relevant web sites for detailed information Whether your just thinking about starting a new business, taken the first steps, or already own your own business, this comprehensive, easy to understand guide can help ensure your success. Written in a friendly, down-to-earth style, Start Your Own Business walks you through every step of the start-up process, from evaluating your business idea, to laying the groundwork to running day-to-day operations. You’ll learn how to conduct market research, choose a business structure, create a winning business plan, handle your bookkeeping and taxes, run your business from home, and much more. Dozens of sample from, work sheets, charts, graphs and even the most complex business issues a breeze.
Customer Review: Excellent Overview of the Whole Shebang
This is a great book in that it is big enough (about 800 pages) and written by enough people (the staff of Engrepreneur Magazine), and has been around long enough (this is the third edition) that it can cover nearly every aspect of the formation of a business.

There is so much information here that a lot of it will not be helpful to you — so skip over those parts. For instance, consider location. They have a chapter on locating your business. I wanted to work at home in a small town in the remote west. I picked the location and then picked the type of business that I could do to meet these other requirements. If, on the other hand, you are thinking retail, your location requirements are different.

Two comments I’d stress a bit stronger than they do, as in it can’t be stressed strongly enough.

1. Cut your ‘nut’ (the amount of money you have to have each month) to the absolute minimum so during the start up phase you don’t have such a high burden to carry. Buying a new house, a couple of new cars and having a couple of kids in college would put quite a burden on a new business.

2. Buy used equipment first. They talk about computers. I needed a new one. Well not new, but another one. I found one at a thrift shop for $75, added $20 worth of used memory from e-Bay and have one that is just as functional as the newest ones.

Overall, an excellent overview of what you’re about to get into.

How to Earn Up to $100,000 a Year or More from Home by Mail: The Complete Guide to Starting Your Own Home-Based Mail Order Business Learn how You Can Earn A Fortune In Your Own Home-Based Mail Order Business
Customer Review: Don’t waste your time on this one
Seeing ‘A Reader’ and ‘Nikki’ submitting 5-star ratings multiple times should clue you in to the shadiness of this book. I had the misfortune of ordering this book before there were any reviews written about it. Come to think of it, I should have written the first review to warn others. The book is laden with typos and grammatical mistakes. Whoever proofread the draft should be fired (if he isn’t already). All the info contained in the book can be found in the internet for free. The only revelation I got from reading the book is that I just made the author that much closer to his $100,000-a-year goal…

ECTACO English < -> Russian Talking dictionary Specialized Business software for Windows English< ->Russian< ->English Talking Partner Specialized Business Dictionary for Windows features extensive (40,000 words and phrases) bidirectional business dictionary with English speech synthesis function.

One of the remarkable features is its advanced voice function, i.e. the ability to pronounce words in English. It is very simple: just select the word and make the speech synthesizer pronounce it for you all in a single click.

The synthesizer, which incorporates Text-to-Speech engine, is based on the new approach to speech synthesis, the formant synthesis technology, implementing the human voice simulation by modeling natural sounds of a national language.

• Unique compilation of wide variety of commonly used business terms.
• Pronunciation of all the listed English words. The function is developed on the basis of the TTS (Text-to-Speech) technology.
• User vocabulary is compiled by adding to and editing existing dictionary entries.
• Parts of speech filter. This function makes the dictionary process only translations belonging to the selected parts of speech.
• English Grammar reference. This section includes grammar rules - Parts of Speech, Verbs and Sentence.

• Quick search function: enter the first few letters of the word in question, and the word starting with these letters and its translations will be displayed.
• Search function for any character sequence entered in the input line.
• Quick reverse translation.