Software Maintenance: Costly And Controllable

It always amazes me when I hear someone say they can estimate software maintenance just by taking a factor of development, or worse yet, just by dictating a fixed (generally too small) maintenance staff.  I have been preparing a paper on estimating maintenance with SEER that will be available shortly.  But the bottom line is: maintenance is a costly component; time/effort spent in development can drastically reduce maintenance costs; conversely, ignoring maintenance can increase total ownership costs dramatically.  Virtually any IT system or other system with user interaction needs evolution to remain useful.  I have some older talks on maintenance here

Related posts:

1. Reducing Software Maintenance and Total Ownership Costs Over 75% of the costs of software are in software maintenance. To address this I (Dan Galorath) participated in a...
2. Estimating Software Maintenance SEER for Software, uses sophisticated software total ownership model modeling including all the information from development (people, process, technology, defects, scope,...
3. $500 Billion IT Debt For Deferred Maintenance Gartner Group has reported that the IT Debt is about $ 500 Billion, the cost of deferred maintenance with that...
4. Interesting, Classic Look at Software Maintenance The following comes from Boehm, long ago. But I think it is still a very interesting chart showing investment, payoff...

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