Difficulty level
Definition
Response times
1
System failure
4 hours on working days and 12 hours on all other days
2
Critical
Loss of business or significant impacts on the customer that jeopardize future productivity
8 hours on working days
3
Urgent
High-impact problem where production is progressing but is significantly impacted; there is a time-critical problem that is important to long-term productivity and does not result in an immediate interruption of operations
Inside 2 working days
4
Important
Important issue that currently has no significant impact on productivity
Inside 5 working days