---
title: "Engagement measures"
slug: "engagement-measures"
abstract: ""
---
# Engagement measures

The engagement measures facet is a calculated facet that stores information about a contact’s interaction duration and total engagement value. The engagement measures facet is represented by the `Sitecore.XConnect.Collection.Model.EngagementMeasures` class.

## Calculation logic

The following table describes the calculation logic applied to each property when a new interaction is saved to xConnect:

| **Property** | **Calculation logic** |
| --- | --- |
| `TotalInteractionCount` | Incremented by one. |
| `TotalValue` | Incremented by the new interaction’s `EngagementValue` |
| `MostRecentInteractionStartDateTime` | Replaced by the new interaction’s `StartDateTime` |
| `MostRecentInteractionDuration` | Replaced by the new interaction’s `Duration` |
| `TotalInteractionDuration` | Incremented by the new interaction’s `Duration` |
| `AverageInteractionDuration` | Represents `TotalInteractionDuration` / `TotalInteractionCount` |