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Strategies for Effectively Managing Legacy Systems
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Summary
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.
Bio
Amit Uttam is a Senior Project Manager with ThoughtWorks, and bears the scars of legacy upgrade projects. He is actively engaged with several ThoughtWorks clients to manage new IT investments and system upgrades. Derek Longmuir is a Lead Consultant at ThoughtWorks. He has worked on and led several legacy system replacement efforts using a variety of techniques.
About the conference
ThoughtWorks recently began hosting events for Business and IT Leaders as well as technology practitioners to share insight and best practice across the industry. The briefings and the Exec Breakfast series are all grounded in reality - speakers are active practitioners, passionate about their work. The events focus on technology in relation to business issues, rather than being deeply technical.
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.
Bio
Amit Uttam is a Senior Project Manager with ThoughtWorks, and bears the scars of legacy upgrade projects. He is actively engaged with several ThoughtWorks clients to manage new IT investments and system upgrades. Derek Longmuir is a Lead Consultant at ThoughtWorks. He has worked on and led several legacy system replacement efforts using a variety of techniques.
About the conference
ThoughtWorks recently began hosting events for Business and IT Leaders as well as technology practitioners to share insight and best practice across the industry. The briefings and the Exec Breakfast series are all grounded in reality - speakers are active practitioners, passionate about their work. The events focus on technology in relation to business issues, rather than being deeply technical.
"Legacy System" definition is incorrect...
by
Robert Dean
Posted
link
by
Zsolt Fabok
Posted
Re: link
by
Diana Plesa
Posted
Re: link
by
Zsolt Fabok
Posted
Can we avoid the "oops"?
by
Eswaran Narasimhan
Posted
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Anything that makes it into production is legacy and this has become particularly true in the wake of Sarbanes-Oxley.
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Does the mp3 link work for you?
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Hello Zsolt,
The mp3 link has been fixed and it's working now.
Diana (InfoQ) -
excellent, thank you very much
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Strangler approach . That analogy is good. In either of the approach one problem is to know the "oops we didn't know about that one". There is a need to understand code and comprehend what is there. You had talked about the tranlsating bugs. Also in my experiennce there are also dead code and unused sub modules. I have tried to understand this at eswarann.wordpress.com/2010/05/21/extracting-bu.... Your comments?
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