# ITrackingActivity Interface

> `ITrackingActivity` represents an interface that defines an activity that's tied to an argument.

`ITrackingActivity` represents an interface that defines an activity that's tied to an argument.

## Definition

* Namespace: `UiPath.DocumentProcessing.Contracts`
* Assembly: `UiPath.DocumentProcessing.Contracts`

## Description

A public interface that defines an activity tracked through an argument.

## Members

#### Properties

`PredictionId` `get, set` - Identifies that the same document is processed in a workflow. It's composed of `DocumentId` and `JobId`.