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5.4 SYSTEM SUPPORT & SECURITY - Coggle Diagram
5.4 SYSTEM SUPPORT & SECURITY
three main concerns:
user expectations
system performance
security requirements
systems support and security phase begins when a system becomes operational andcontinues until the system reaches the end of its useful life
User Support
Companies provide user support in many forms,including user training and a help desk to provide technical support and assistance.
User Training
Training users about system changes
is similar to initial training.
Help Desks
is a centralized resource staffed by IT professionals who provide users with the support they need to do their jobs.
Types Of Maintenance
Changing programs, procedures, or documentation
to ensure correct system performance.
System Maintenance Tools
Performance monitor that provides data on program execution times
Interactive debugging analyzer that locates the source of a programming error
Reengineering tools
Automated documentation
System Security
refers to protecting the system from theft,
unauthorized access and changes and accidental or accidental
harm.
BACKUP AND RECOVERY
Backup refers to copying data at prescribed intervals, or continuously
Recovery involves restoring the data and restarting the system after an
interruption
