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 and diminishing returns.

Related posts:

1. Estimating Software Maintenance
2. Software Maintenance: Costly And Controllable
3. Interesting ROI Spreadsheet for Software Process
4. Reducing Software Maintenance and Total Ownership Costs
5. Estimating Web Effort / Schedule

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