AWS::Evidently::Segment - Amazon CloudFormation
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Creates or updates a segment of your audience. A segment is a portion of your audience that share one or more characteristics. Examples could be Chrome browser users, users in Europe, or Firefox browser users in Europe who also fit other criteria that your application collects, such as age.

Using a segment in an experiment limits that experiment to evaluate only the users who match the segment criteria. Using one or more segments in a launch allow you to define different traffic splits for the different audience segments.

For more information about segment pattern syntax, see Segment rule pattern syntax.

The pattern that you define for a segment is matched against the value of evaluationContext, which is passed into Evidently in the EvaluateFeature operation, when Evidently assigns a feature variation to a user.


To declare this entity in your Amazon CloudFormation template, use the following syntax:


{ "Type" : "AWS::Evidently::Segment", "Properties" : { "Description" : String, "Name" : String, "Pattern" : String, "Tags" : [ Tag, ... ] } }


Type: AWS::Evidently::Segment Properties: Description: String Name: String Pattern: String Tags: - Tag



An optional description for this segment.

Required: No

Type: String

Minimum: 0

Maximum: 160

Update requires: No interruption


A name for the segment.

Required: Yes

Type: String

Pattern: [-a-zA-Z0-9._]*

Minimum: 1

Maximum: 127

Update requires: No interruption


The pattern to use for the segment. For more information about pattern syntax, see Segment rule pattern syntax.

Required: No

Type: String

Minimum: 1

Maximum: 1024

Update requires: No interruption


Assigns one or more tags (key-value pairs) to the feature.

Tags can help you organize and categorize your resources. You can also use them to scope user permissions by granting a user permission to access or change only resources with certain tag values.

Tags don't have any semantic meaning to Amazon and are interpreted strictly as strings of characters.

You can associate as many as 50 tags with a feature.

For more information, see Tagging Amazon resources.

Required: No

Type: Array of Tag

Update requires: No interruption

Return values


When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the ARN of the segment. For example, arn:aws:evidently:us-west-2:123456789012:segment/australiaSegment


The Fn::GetAtt intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the Fn::GetAtt intrinsic function, see Fn::GetAtt.


The ARN of the segment. For example, arn:aws:evidently:us-west-2:123456789012:segment/australiaSegment