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sourceDocumentLink: https://www.servicenow.com/docs/r/telecom-media-technology

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    - brazil

ft:locale :

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ft:publication_title :

    - Brazil Telecommunications, Media, and Technology

ft:clusterId :

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bundleId :

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workflow :

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---

# Define a characteristic

# Define a characteristic for the test definition {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Add a characteristic for a test to determine the properties that are required to run and evaluate the test.

## Before you begin

Role required: admin

## Procedure

1. Navigate to AllService Test ManagementTest DefinitionsAll.
2. Select the test definition that you want to open.
3. In the Test Definition Characteristics related list, add a characteristic by selecting New.
4. On the form, fill in the fields.  
   {#add-characterisitc-for-test-specification__table_et2_13w_3bc__entry__2}

   | Field | Description |
   |-|-|
   | Characteristic | Service or product characteristic of the test that helps determine the effectiveness of the defined characteristic. In the test definitions, the characteristics of type attachment and duration aren't supported. For example, if you select download speed characteristics for the speed test definition, the system tests the downloading speed to troubleshoot the issue raised due to internet outage. |
   | Characteristic option | Characteristic options for a characteristic. |
   | Test definition | Auto-populated name of the test definition for which you're defining the characteristics. |
   [Table 1. Test Definition Characteristics]

   {#add-characterisitc-for-test-specification__table_et2_13w_3bc}  
   Note:  
   A characteristic belongs to either a test definition or a test group, not both. To define a characteristic for a test group, see [Define a characteristic for a test group](https://www.servicenow.com/docs/AYX~C0zWkjlm~_ql120AeA "Add a characteristic to a test group so that its test definitions can inherit the characteristic and the test group run can show it.").
5. Select Submit.
**Related concepts**   

* [Test definitions in Service Test Management](https://www.servicenow.com/docs/t4STlHAHnKqPu1DgzNFPWQ "A test definition specifies the parameters, metrics, and threshold rules for a service test. Use test definitions to identify the root cause of service problems across service types, product models, and inventory.")
* [Test groups in Service Test Management](https://www.servicenow.com/docs/A19gKFAaOM9oU~mhCPItoQ "A test group organizes related test definitions and measurement consequences to help identify the root cause of a service problem. Use test groups to define manual or automated testing strategies, apply shared characteristics across test definitions, and limit scope using conditions tied to product inventory records.")

*[\>]: and then