Software Maintenance

There are five types of software maintenance
  1. Preventive Maintenance - A system may be checked and maintained periodically
  2. Corrective Maintenance - Correct the deviation noticed under certain conditions of field use of the system
  3. Perfection or Enhancement Maintenance - development team delivers a system on schedule and then finds another design capable of working more accurately and effectively
  4. Adaptive Maintenance - Adapt the software to new conditions
  5. System Reengineering - previously developed system is reengineered.


  1. Sir, I found this. Thought you might be interested in it. The world's smallest linux based embedded system:


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