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Legacy Applications

Apr 21 2009   10:25PM GMT

Legacy Application to Windows - Challenge of design



Posted by: Joe Coley
Application design, Human Interface Design, User Experience, Legacy Applications, Updating Legacy Systems, software development, Software Development Methodologies

I’ve discovered the greatest challenge of my application programming and design career,  (Hopefully I haven’t met my match!).  My latest project involves a rather large legacy character-based system which has evolved over the past 20 years or so.  The source code directory lists some 800+ pieces of source code, with close to 500 being actively used, and others that were basically copies of some “active” source with minor modifications - mostly in the screen layouts for entry programs, and header footer changes on reports.  In all, a lot of code to evaluate. Continued »

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Apr 4 2009   10:30PM GMT

Legacy Applications - What Keeps Them Running?



Posted by: Joe Coley
Legacy Applications, character based applications, custom application development, UI, User Interface

It can be a huge leap from the highly customized legacy application (which for many have been in use double digit years), to the newer graphical point and click or web based AJAX type application.  So my question today is “What keeps them running?”,  or perhaps a better question is what is it about them that keeps them in place for so long?  My questions arise once again prompted by a vist with a new client now running their legacy character based system well into the double digit year mark. Continued »

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