A service provider is setting up an agreement with an organization. As the user experience is important, it is added to the agreement. Which metric would you advise to be added to the agreement?

The maximum duration of an interruption is a key metric for service availability. Availability is a fundamental component of service warranty and one of the most significant factors impacting the user experience. A prolonged service outage directly causes user frustration, prevents value co-creation, and leads to a negative perception of the service. Including this metric in a service agreement ensures that a critical aspect of the user's experience—the service being accessible when needed—is formally managed and measured, aligning with the ITIL principle of focusing on value from the user's perspective.

B. This is a specific usability metric for a single process or workflow, not a general service level metric suitable for a high-level agreement.
C. This is a capacity management metric that defines a system's technical limit, rather than measuring the quality of an individual user's experience.
D. This is a commercial or pricing term related to the quantity of service usage, not the quality of the user's interaction or overall experience. ---

1. AXELOS. (2020). ITIL® 4: Drive Stakeholder Value. TSO (The Stationery Office).

Section 2.1.3

"Utility

warranty

and experience": This section explains that warranty addresses whether a service is 'fit for use' and includes aspects like availability. The duration of an interruption is a primary measure of availability

which is a cornerstone of the user experience.

Section 4.3.3.3

"Service level agreements": This section details that SLAs should define expected service levels and targets based on a shared understanding of required outcomes

which includes warranty aspects like availability. Metrics related to downtime are classic components of SLAs.