Exploring SLIs
An SLI is a quantitative measure of the level of service provided with respect to some aspect of service reliability. Aspects of a service are directly dependent on potential user journeys, and each user journey can have a different set of SLIs. Once the SLIs are identified per user journey, the next critical step is to determine how to measure the SLI.
This section describes the details around how to identify the right measuring indicators or SLIs by categorizing user journeys, the equation to measure SLIs, and ways to measure SLIs.
Categorizing user journeys
The reliability of a service is based upon the user's perspective. If a service offers multiple features, each feature will involve a set of user interactions or a sequence of tasks. This sequence of tasks that is critical to the user's experience offered by the service is defined as a user journey.
Here are some examples of user journeys when using a video streaming service:
- Browsing...