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Crosstalk : The Journal of Defense Software Engineering, December 2001; Volume 14, Issue 12 : Software Legacy Systems : Bridging the Past to the Future: Software Legacy Systems : Bridging the Past to the Future

By Bowers, Pamela

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Book Id: WPLBN0002112509
Format Type: PDF Magazine :
File Size: 5.2 MB
Reproduction Date: 2001

Title: Crosstalk : The Journal of Defense Software Engineering, December 2001; Volume 14, Issue 12 : Software Legacy Systems : Bridging the Past to the Future: Software Legacy Systems : Bridging the Past to the Future  
Author: Bowers, Pamela
Volume: Volume 14, Issue 12
Language: English
Subject: Government, Technology, Software Development
Collections: Periodicals: Journal and Magazine Collection, CrossTalk Journal Collection
Historic
Publication Date:
2001
Publisher: Usaf Software Technology Support Center

Citation

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Michael V. Delprincipe, Jonathan D. Preston, Dr. Ben A. Calloni, Dr. David Corman, Jahn A. Luke, Douglas G. Haldeman, William J. Cannon, Philip Newcomb, Randy A. Doblar, Dr. Barry Boehm, Dr. Daniel Por, K. L. (2001). Crosstalk : The Journal of Defense Software Engineering, December 2001; Volume 14, Issue 12 : Software Legacy Systems : Bridging the Past to the Future. Retrieved from http://cn.ebooklibrary.org/


Description
Description: The Air Force Research Laboratory Information Directorate and Lockheed Martin have developed a legacy software reengineering capability that parses and converts JOVIAL source files into language-neutral graph-based representations of their operation; this article introduces three suggested types of software wrappers and describes their use as a key technology for modernizing legacy systems, discusses a process for selecting which upgrade path to use, and explains a new tool-set that automatically generates wrappers; this article describes a commercial off-the-shelf-based replacement strategy that can reuse existing software code while providing a flexible framework for incremental upgrades and managed change; it is now possible to transform system applications code and databases at automation levels that exceed 99 percent to migrate legacy systems to a modern computing environment while preserving their processes; the authors in this article show how the spiral model and its recent extension--Model-Based Architecting and Software Engineering--can be used to tailor a project's balance of discipline and flexibility via risk considerations.

Summary
Summary: CrossTalk, The Journal of Defense Software Engineering, is an approved U.S. Department of Defense journal. CrossTalk's mission is to encourage the engineering development of software in order to improve the reliability, sustainability, and responsiveness of our warfighting capability and to inform and educate readers on up-to-date policy decisions and new software engineering technologies.

Table of Contents
Table of Contents: Software Legacy Systems: Reengineering: An Affordable Approach for Embedded Software Upgrade; by Kenneth Littlejohn, Michael V. DelPrincipe, Jonathan D. Preston, and Dr. Ben A. Calloni. The Air Force Research Laboratory Information Directorate and Lockheed Martin have developed a legacy software reengineering capability that parses and converts JOVIAL source files into language-neutral graph-based representations of their operation -- The IULS Approach to Software Wrapper Technology for Upgrading Legacy Systems; by Dr. David Corman. This article introduces three suggested types of software wrappers and describes their use as a key technology for modernizing legacy systems, discusses a process for selecting which upgrade path to use, and explains a new tool-set that automatically generates wrappers -- A COTS-Based Replacement Strategy for Aging Avionics Computers; by Jahn A. Luke, Douglas G. Haldeman, and William J. Cannon. This article describes a commercial off-the-shelf-based replacement strategy that can reuse existing software code while providing a flexible framework for incremental upgrades and managed change -- Automated Transformation of Legacy Systems; by Philip Newcomb and Randy A. Doblar. It is now possible to transform system applications code and databases at automation levels that exceed 99 percent to migrate legacy systems to a modern computing environment while preserving their processes -- Best Practices: Balancing Discipline and Flexibility With the Spiral Model and MBASE; by Dr. Barry Boehm and Dr. Daniel Port. The authors in this article show how the spiral model and its recent extension--Model-Based Architecting and Software Engineering--an be used to tailor a project's balance of discipline and flexibility via risk considerations..

 
 



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