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TOPIC 5.4 SYSTEM SUPPORT & SECURITY - Coggle Diagram
TOPIC 5.4 SYSTEM SUPPORT & SECURITY
System Support & Security Phase
3 main concerns of Managing systems support and security :
system performance
security requirements .
user expectations
User Support
Companies provide user support in many forms, including:
user training
The main objective is to show users how the system can help them perform their jobs.
help desk
A help desk is a centralized resource staffed by IT professionals who provide
users with the support they need to do their jobs.
3 main objectives:
Provide answers to technical or operational questions
Make users more productive by teaching them how to meet their own
information needs.
Show people how to use system resources more effectively,
2 Maintenance activities
Changing programs, procedures, or documentation
to ensure correct system performance.
Adapting the system to changing requirements; and
making the system operate more efficiently.
System Maintenance Tools :
examples
Automated documentation
Network activity monitor
Reengineering tools
System Security
System integrity is concerned with the quality and reliability of raw
as well as processed data in the system.
BACKUP AND RECOVERY
Backup refers to copying data at prescribed intervals, or continuously
Duplicate systems run and all transactions mirrored if it is a very critical
system and cannot tolerate any disruption before storing in disk.
Recovery involves restoring the data and restarting the system after an
interruption.