Activate and configure Service Mapping for top-down discovery

---
title: Activate and configure Service Mapping for top-down discovery
description: A top-down discovery provides a list of CIs and their interrelationships. This information is useful for managing software services and hardware issues that are associated with alerts.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/it-operations-management/event-management/t\_EMGetBaselineServiceMapping.html
release: australia
product: Event Management
classification: event-management
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Application services in Event Management, Configure, Event Management, ITOM AIOps, IT Operations Management]
---

# Activate and configure Service Mapping for top-down discovery

A top-down discovery provides a list of CIs and their interrelationships. This information is useful for managing software services and hardware issues that are associated with alerts.

## Before you begin

Role required: evt\_mgmt\_admin

## About this task

In Event Management, Service Mapping relationships appear on alerts. You can view the related CI and other information in the Event Management dashboard. The mapping relationships appear in a service map with the generated alert, any CIs that are bound to the alert, and all related CIs.

## Procedure

1.  Use Service Mapping to get top-down discovery information.

    Service Mapping, which is closely related to Event Management, provides tools to discover the relationships between network, hardware, software, storage, and other devices.


**Parent Topic:**[Application services in Event Management](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/event-management/application-service-event-management.md)

**Related topics**  


[Service Mapping](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/service-mapping/c_ServiceMappingOverview.md)

[Request Service Mapping](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/it-operations-management/service-mapping/t_ActivateServiceMappingPlugin.md)