---
sourceDocument: Australia IT Service Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/de-DE/it-service-management

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    - australia

ft:locale :

    - de-DE

ft:publication_title :

    - Australia IT Service Management

ft:clusterId :

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bundleId :

    - itsm

workflow :

    - Technology


---

# Site Reliability Metrics basic terminologies

# Site Reliability Metrics basic terminologies {#ariaid-title1}

* Freigeben Version: Australia
* 
* Aktualisiert 12. März 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 Minute Lesedauer

A quick guide to some of the basic terminology to understand Site Reliability Metrics (SRM) and use
its features.
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| Terms | Descriptions |
|-|-|
| Application Performance Management (APM) | The monitoring and management of performance and availability of applications. APM strives to detect and diagnose complex application performance problems and maintain an expected level of service. |
| Service Level Management (SLM) | A framework by which service levels are agreed to between a provider and a consumer to support business processes. Service Level Management includes Service Level Agreement (SLA), Operating Level Agreement (OLA), and Underpinning Contract (UC). |
| Service Level Agreements (SLA) | An SLA defines the level of service agreed to between a provider and a consumer. It typically lays out the metrics by which service is measured, as well as remedies or penalties if the agreed-upon service levels are not achieved. |
| Service Level Objective (SLO) | A target value or range of values for a service level that is measured by an SLI. |
| Service Level Indicator (SLI) | A quantitative measure of some aspect of the level of service that is provided. Metrics are used to define SLO targets. |
| Measured reliability | The ability to deliver the promised services in a consistent and accurate manner. Reliability is calculated automatically by subtracting outages from 100%. |
| Error budget | An error budget is the amount of SLO that you can spend over a specified time. It can be used to manage release velocity. It is typically based on availability, latency, and so on. |
| Error budget policy | A policy or rule that is created for a service to trigger actions such as creating an incident, or sending notifications when a set threshold is crossed. |
[Tabelle : 1. Terms used in SRM]

{#srm-basic-terminologies__table_kz3_ypv_r4b}