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5.4 SYSTEM SUPPORT & SECURITY - Coggle Diagram
5.4 SYSTEM SUPPORT & SECURITY
System Support & Security Phase
three main concerns:
i. user expectations
ii. system performance
iii. security requirements
User Support
user training and a help desk to provide technical support and assistance.
User Training
i. online support via e mail, a special Web site, a revision to the user guide, a training manual supplement, or formal training sessions.
ii. show users how the system can help them perform their jobs.
Help Desks
i. centralized resource staffed by IT professionals who provide
users with the support they need to do their jobs.
ii. three main objectives:
Show people how to use system resources more effectively
Provide answers to technical or operational questions
Make users more productive by teaching them how to meet their own information needs.
Types Of Maintenance
i. Changing programs , procedures, or documentation to ensure correct system performance.
ii. Adapting the system to changing requirements and making the system operate more efficiently.
System
Security Concepts
Confidentiality
protects information from unauthorized disclosure and safeguards privacy.
Integrity
prevents unauthorized users from creating, modifying, or deleting information.
Availability
that authorized
users have timely and reliable access
to necessary information.
BACKUP AND RECOVERY
Backup
copying data at prescribed intervals, or continuously.
Recovery
involves restoring the data and restarting the system after an
interruption.
