System Operation & Maintenance

• System Operation

  • use of new or modified system
• System Maintenance

  • check and improve system
• Reason for Maintenance

  • changes in business processes, OS
  • new request
  • bugs or error
  • technical or hardware problems
  • merger or acquisition
  • government regulations
• Relationship with Design

  • maybe more expensive for maintenance than replacing
  • better design, less cost for maintenance