CHAPTER 9: DEPLOYMENT AND MAINTENACE Flashcards
System Change-over Strategies(How the old system will be replaced with new?)
Direct cutover: New system replaces old system immediately
Parallel operation (or parallel running): Both old and new system are run simultaneously for a period
Pilot operation: New system, is introduced in just one branch of a organisation.
Phased operation: New system is added a bit at a time
what are the type of the Maintenance Tasks
Corrective Maintenance
Adaptive Maintenance
Perfective Maintenance
Preventive Maintenance
Software Maintenance
The process of modifying a software system or component after delivery to correct faults, improve performance or other attributes, or adapt to a changed environment.
Corrective Maintenance
Diagnoses and corrects errors in an operational system
Adaptive Maintenance
Adds enhancements to an operational system and makes the system easier to use
Perfective Maintenance
Involves changing an operational system to make it more efficient, reliable and maintainable
Preventive Maintenance
Requires analysis of areas where trouble is likely to occur