---
sourceDocument: Australia Platform security
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/de-DE/platform-security

 Release :

    - australia

ft:locale :

    - de-DE

ft:publication_title :

    - Australia Platform security

ft:clusterId :

    - psec

bundleId :

    - psec

workflow :

    - Platform


---

# History Timeline

# History Timeline {#ariaid-title1}

* Freigeben Version: Australia
* 
* Aktualisiert 12. März 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 3 Minuten Lesedauer

You
can view a timeline of changes for a CI and for its related records, relationships, baselines, and
proposed changes for the CI. Timelines are available for CIs in the Configuration Item \[cmdb_ci\]
table or a descendant of this table, if auditing is enabled for the tables.
Role required: The ACL for this view is based on the roles defined in the
glide.history.role system property, which by default is set to
<kbd class="ph userinput">itil</kbd>. Also, the user must have read access to the History Set
\[sys_history_set\] table, which by default is granted to admin.

You can open a timeline when you view the history of a CI. You can specify the time period,
time range, and properties that are displayed in the timeline. You can view either what has
changed in a particular change set, or view the entire CI to better troubleshoot any issues. You
can also display a timeline of changes to the CI's related records, and export and compare
snapshots of the CI at any point in time.

CI changes are represented by bubbles in different shapes and colors along the timeline. The
shape of each bubble represents a different type of change and the color of each bubble
specifies whether the change is valid or invalid. CI baselines are represented by black circles
that you can hover over to display more details. Click the ? icon to
display bubble shape and color definitions, and point to a bubble to display details about the
change set.

A change to a relationship is considered valid only if it was applied through change
management. If the change was applied via the Proposed Changes framework, it is valid. For
additional validation steps, see [Create or edit a planned validation script](https://www.servicenow.com/docs/access?context=c_ProposedChanges&version=australia&pubname=australia-servicenow-platform&section=t_CreatePlanChngValidScript&ft:locale=en-US) .  
Abbildung : 1. History Timeline view  
Abbildung : 2. Timeline bubbles ![]()  
Hinweis:  
Proposed changes that do not have a planned start date are placed at future points of time.

## Timeline navigator

Use the handles on both ends of the timeline navigator to extend or to shorten the time period
that is shown.

You can scroll to a different period of time by clicking on the bottom part of the timeline
navigator and then dragging the navigator to the left or right.

## Zoom

By default, the timeline for the last month is shown. Next to the Zoom
label above the timeline, you can select another time interval. You can select intervals from a
minute to the entire period of data.  
If there are many changes of the CI during the time period, the bubbles displayed might get too crowded. You can zoom in or out to spread the bubbles in either method:

* Change the time interval on the timeline. As you shorten the time interval, you zoom in, and as you lengthen the time interval, you zoom out.
* Select the section of the timeline that you want to zoom into.
{#c_HistoryTimeline__ul_e3n_vrb_ys}

## Property filter

You can filter the bubbles that are displayed. By default, all bubbles are displayed,
representing changes to all of the CI's properties. You can limit the view to display only the
bubbles in which selected properties have changed and exclude bubbles in which only unselected
properties changed.

The Detail and Summary views highlight
properties within your filter scope that have changed. The changed properties are highlighted in
light blue.

In
the Summary view, you can choose to include all the properties of the CI,
or only properties that have changed. If you choose to display all properties in the summary
view, then changed properties are listed before unchanged properties.

## Summary view

The Summary view displays snapshots of the CI's represented by each
bubble. Each snapshot displays the changes to the CI's fields and relationships according to the
change set. It displays old and new values before and after the change, and any relationships
that were added or deleted.

Use the \> and \< buttons on both sides of the
snapshot display to scroll through the next and previous change set records in a chronological
order.

## Detail view

The Detail view displays snapshots of the CI that correspond with the
bubbles. Each snapshot includes the fields that are within the property filter scope, displaying
the properties that have changed with a light blue background. Click on a bubble to display its
corresponding snapshot of the CI. The data that is displayed is read-only.

Use the \> and \< buttons on both sides to
scroll through the next and previous change set records in a chronological order.