Maintenance

1
Maintenance

• Basic concepts

2
Definition of maintenance

• All changes done to software after delivery (IEEE
  Std 1219)
• Modifications due to a problem or need of
  improvement (IEEE/EIA Std 12207)
• What about products in different releases over a
  long period?

3
Categories of maintenance
Correction Enhancement
Proactive Preventive Perfective
Reactive Corrective Adaptive
4
Process
Change request
Delivery
Identification
Time stamp
Configuration management
Classification
Impact analysis
Understanding
Tests at different levels
Postponed
Decision
Refused
Implementation
Answer
Design
Scheduling
Requirements analysis