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# AWS::ApplicationSignals::ServiceLevelObjective Sli
<a name="aws-properties-applicationsignals-servicelevelobjective-sli"></a>

This structure specifies the information about the service and the performance metric that an SLO is to monitor.

## Syntax
<a name="aws-properties-applicationsignals-servicelevelobjective-sli-syntax"></a>

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

### JSON
<a name="aws-properties-applicationsignals-servicelevelobjective-sli-syntax.json"></a>

```
{
  "[ComparisonOperator](#cfn-applicationsignals-servicelevelobjective-sli-comparisonoperator)" : String,
  "[MetricThreshold](#cfn-applicationsignals-servicelevelobjective-sli-metricthreshold)" : Number,
  "[SliMetric](#cfn-applicationsignals-servicelevelobjective-sli-slimetric)" : SliMetric
}
```

### YAML
<a name="aws-properties-applicationsignals-servicelevelobjective-sli-syntax.yaml"></a>

```
  [ComparisonOperator](#cfn-applicationsignals-servicelevelobjective-sli-comparisonoperator): String
  [MetricThreshold](#cfn-applicationsignals-servicelevelobjective-sli-metricthreshold): Number
  [SliMetric](#cfn-applicationsignals-servicelevelobjective-sli-slimetric): 
    SliMetric
```

## Properties
<a name="aws-properties-applicationsignals-servicelevelobjective-sli-properties"></a>

`ComparisonOperator`  <a name="cfn-applicationsignals-servicelevelobjective-sli-comparisonoperator"></a>
The arithmetic operation to use when comparing the specified metric to the threshold.  
*Required*: Yes  
*Type*: String  
*Allowed values*: `GreaterThanOrEqualTo | LessThanOrEqualTo | LessThan | GreaterThan`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`MetricThreshold`  <a name="cfn-applicationsignals-servicelevelobjective-sli-metricthreshold"></a>
The value that the SLI metric is compared to.  
*Required*: Yes  
*Type*: Number  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SliMetric`  <a name="cfn-applicationsignals-servicelevelobjective-sli-slimetric"></a>
Use this structure to specify the metric to be used for the SLO.  
*Required*: Yes  
*Type*: [SliMetric](aws-properties-applicationsignals-servicelevelobjective-slimetric.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)