Maintenance
Change setting
Configuration magt
Version
Variant
Release
Factors
Team Stability
Contractionul Responsibility
Staff Skills
Program age & Structure
Architectural transformation
Software re Engineering
Advantages
Reduced risk
Reduced cost
Activities
Source code translation
Reverse engineering
Program structure improvement
Progaram modularization
Data re engineering
Problems
Approaches
Data clean up
Data extention
Data migration
Cost
Development cost
Tchnical affeced cost
Ageing software
Software maintenance
Types
Corrective
Adaptive
Perfective