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5.4 SYSTEM SUPPORT & SECURITY - Coggle Diagram
5.4 SYSTEM SUPPORT & SECURITY
System Support & Security Phase
three main concerns:
system performance
security requirements .
user expectations
User Support
Companies provide user support in many forms,
including user training and a help desk to provide technical support and assistance.
User Training
Depending on the nature of the
changes, the package could include online support via e-mail, a special
Web site, a revision to the user guide, a training manual supplement,
or formal training sessions.
Help Desks
three 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,
15help desk staff might have to perform the following tasks:
1.Show a user how to create a data query or report that displays specific business information
Resolve network access or password problems
Demonstrate an advanced feature of a system or a commercial package
Help a user recover damaged data
Offer tips for better operation
Explain an undocumented software feature
Show a user how to use Web conferencing
Explain how to access the company’s intranet or the Internet
Assist a user in developing a simple database to track time spent on various projects
Answer questions about software licensing and upgrades
Provide information about system specifications and the cost of new hardware or software
Recommend a system solution that integrates data from different locations to solve a business
problem
Provide hardware support by installing or reconfiguring devices such as scanners, printers, network
cards, wireless devices, optical drives, backup devices, and multimedia systems
Show users how to maintain data consistency and integrity among a desktop computer, a notebook
computer, and a handheld computer or smart phone
Troubleshoot software issues via remote control utilities
2 Types Of Maintenance
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
• Performance monitor that provides data on program execution times
• Program analyzer that scans source code, provides data element cross-reference
information, and helps evaluate the impact of a program change
• Interactive debugging analyzer that locates the source of a programming error
• Reengineering tools
• Automated documentation
• Network activity monitor
System Security Concept
Confidentiality protects
information from unauthorized disclosure
and safeguards privacy.
Integrity prevents
unauthorized users from creating, modifying, or
deleting information.
Availability ensures
that authorized users have timely
and reliable access to necessary information
BACKUP AND RECOVERY
BACKUP
Backup refers to copying data at prescribed intervals, or continuously.
RECOVERY
Recovery involves restoring the data and restarting the system after an
interruption