Brownfield to Green
Nat Pryce presents the reengineering effort made to transform a legacy system through incremental improvement, the development process implemented, the results and some takeaway lessons learned.
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Build Machines, Windows 7, and Classic ADO
Imagine you are doing maintenance on an application from the late 90’s that uses the classic ADO libraries. The recompiled code works fine on any Windows 7 SP1 machine, but mysteriously crashes on the Windows XP machines that have been running the program for nearly a decade. This is the problem facing lots of maintenance developers.
Reactions to the VB 6 Open Source Rumor
A prank during TechEd caused many to believe that Visual Basic 6 would be open sourced. While it turned out to be false, it did start a lot of conversations about the language, its legacy, and an open source implementation would mean.
MED-V 2.0 and App-V 4.6 SP1: Two Microsoft Virtualization Solutions for Enterprises
MED-V 2.0 is a desktop virtualization solution enabling users to run legacy applications on Windows 7. App-V 4.6 SP1 is a service pack for Application Virtualization, another solution for deploying applications within the enterprise.
Articles about Legacy Code
Eight Quick Ways to Improve Java Legacy Systems
Even Java systems can be "legacy" systems. This article explores 8 quick and relatively low risk ways to improve even the crustiest Java application. Applications that may have previously been written off as dead can find new life by using these tips to improve performance, reduce operations overhead and grease the gears of the development lifecycle.
Staying Safe and Sound Thanks to MDSD
In this article, Andreas Kaltenbach explains how Model-Driven Software Development (MSDS) can help solving backward compatibility problems when creating a newer version of a software which can mean a new API or a new database schema that old clients cannot use. MSDS is used to negotiate the differences between versions to ease the upgrading process.
Presentations about Legacy Code
Brownfield Software - Industrial Waste or Business Fertilizer?
Josh Graham addresses 10 myths related to working on legacy software, attempting to prove that one can make good use of legacy code without having to rewrite the entire thing.
Strategies for Effectively Managing Legacy Systems
In this ThoughtWorks Quarterly Technology Briefing, Amit Uttam and Derek Longmuir discuss what a legacy system is, the typical approaches to dealing with legacy systems, the cost of legacy systems, replacement strategies and techniques, technology asset portfolios, system health checks, executing a migration plan, "strangler" vs phased approaches, and continually evolving your system.
Interviews about Legacy Code
Michael Feathers on Programming Languages
In this interview with Sadek Drobi, Michael Feathers explores working with legacy code, working with different programming languages, the right scope/size of modules, and the importance of readability of code regardless of the programming language.
