Modernizing Legacy Systems

Modernizing Legacy Systems

Author: Robert C. Seacord

Publisher: Addison-Wesley Professional

Published: 2003

Total Pages: 344

ISBN-13: 9780321118844

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Most organizations rely on complex enterprise information systems (EISs) to codify their business practices and collect, process, and analyze business data. These EISs are large, heterogeneous, distributed, constantly evolving, dynamic, long-lived, and mission critical. In other words, they are a complicated system of systems. As features are added to an EIS, new technologies and components are selected and integrated. In many ways, these information systems are to an enterprise what a brain is to the higher species--a complex, poorly understood mass upon which the organism relies for its very existence. To optimize business value, these large, complex systems must be modernized--but where does one begin? This book uses an extensive real-world case study (based on the modernization of a thirty year old retail system) to show how modernizing legacy systems can deliver significant business value to any organization.


DoD Business Systems Modernization

DoD Business Systems Modernization

Author: Randolph C. Hite

Publisher: DIANE Publishing

Published: 2008-09

Total Pages: 56

ISBN-13: 1437906079

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In 1995, the DoD business systems modernization program was designated as a high-risk program, and the program remains on the high-risk list today. A key to successful systems modernization is having and using an enterprise architecture as an authoritative frame of reference, or blueprint, for system investment decisions. To assist DoD in modernizing its business systems, Congress passed legislation consistent with prior recommendations for DoD to develop and implement a business enterprise architecture (BEA). In response, DoD developed a corporate BEA that it intends to federate, or extend, to the military depts. and defense agencies. This report evaluates the status of the Air Force, Navy, and Army architecture programs. Illus.


DoD Business Systems Modernization

DoD Business Systems Modernization

Author: Randolph C. Hite

Publisher: DIANE Publishing

Published: 2008-10

Total Pages: 54

ISBN-13: 1437905455

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The Dept. of Defense¿s (DoD) business systems modernization program is designated as ¿high risk¿. To assist in addressing this high-risk area, the Reagan Nat. Defense Authorization Act for FY 2005 contains provisions that are consistent with prior investment mgmt. and enterprise architecture-related recommendations, and requires the dept. to submit annual reports to its congressional committees on its compliance with these provisions. The act also directs a review each annual report. This report assessed the actions taken by DoD to comply with requirements of the act. The report reviewed the latest version of DoD¿s business enterprise architecture and the associated transition plan and architecture federation strategy. Illustrations.


Information Systems Transformation

Information Systems Transformation

Author: William M. Ulrich

Publisher: Morgan Kaufmann

Published: 2010-02-04

Total Pages: 449

ISBN-13: 0080957102

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Every major enterprise has a significant installed base of existing software systems that reflect the tangled IT architectures that result from decades of patches and failed replacements. Most of these systems were designed to support business architectures that have changed dramatically. At best, these systems hinder agility and competitiveness and, at worst, can bring critical business functions to a halt. Architecture-Driven Modernization (ADM) restores the value of entrenched systems by capturing and retooling various aspects of existing application environments, allowing old infrastructures to deliver renewed value and align effectively with enterprise strategies and business architectures. Information Systems Transformation provides a practical guide to organizations seeking ways to understand and leverage existing systems as part of their information management strategies. It includes an introduction to ADM disciplines, tools, and standards as well as a series of scenarios outlining how ADM is applied to various initiatives. Drawing upon lessons learned from real modernization projects, it distills the theory and explains principles, processes, and best practices for every industry. Acts as a one-stop shopping reference and complete guide for implementing various modernization models in myriad industries and departments Every concept is illustrated with real-life examples from various modernization projects, allowing you to immediately apply tested solutions and see results Authored by the Co-chair of the Object Management Group (OMG) Architecture-Driven Modernization (ADM) Task Force, which sets definitive systems modernization standards for the entire IT industry A web site supports the book with up to date coverage of evolving ADM Specifications, Tutorials, and Whitepapers, allowing you to remain up to date on modernization topics as they develop