Maintenance involves the responsibility of keeping applications reliable and available on a continuous basis taking care of the key challenges of running existing applications and performance management. ii's maintenance services include the modification of existing Internet Applications and Technology investments to improve performance , fix errors and bugs in the system , adapt to a changed environment and include change requests from clients for refinements.

The phases in the process of Maintenance are :

• Identify Maintenance boundaries
  
• Set up offsite maintenance facilities
  
• Process Maintenance requests
  
• Delivery & Monitoring