---
alias: user-guide-data-set-index
tags:
- data platform
description: "This documentation describes data sets used within a data platform"
---

# Data Set

:lock: Dataset.**Show**

## Overview

A **Data Set** represents a collection of data in tabular format. **Data Sets** can be automatically created upon the creation of a new IoT Event Definition, or can be user-defined with a SELECT SQL statement. They can be used for many purposes, such as training ML models or feeding dashboards.

Data can also be accessed by any client supporting OData (example: Excel, PowerBI or Jupyter Notebook).

## Folders

If you navigate to the **Data Sets** page in the **Data Platform** menu, you can see that the **Data Sets** are organized into multiple root folders:

![Data Sets](images/data_set_01.png)

Each folder contains different types of **Data Sets**:

- **Apps** - folder for data sets created and used by MES Apps.
- **CDM** - folder for system data sets containing the Canonical Data Model data.
- **Datasilos** - folder for Data Silos.
- **DWH** - folder for Data Warehouse data sets containing aggregated data.
- **IoTEvents** - folder for data sets associated with IoT Events.
- **MES** - folder for data sets containing data from the ClickHouse MES database.
- **ODS** - folder for data sets containing MES ODS data.
- **UserDefined** - folder for data sets manually created by MES users.

The **IoTEvents** folder contains data sets that are automatically created when new **IoT Event Definitions** are created, and those data sets contain the flatted events being posted to **Data Platform** using those IoT Events.

Data sets that are created manually will go to the **User Defined** root folder, where you can also create sub-folders.

All other folders contain system data sets that contain MES data.

## System Data Sets

Here is the list of system data sets:

!!! warning
    This list does not include all **Data Sets** that are available and created from each **IoT Event Definition**.

{% include-markdown 'includes/docsync/dataset_list.md' %}