docs/UserGuide/Library-UDF/Get-Started.md

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# Overview

## About UDF Library

For applications based on time series data, data quality is vital.
**UDF Library** is IoTDB User Defined Functions (UDF) about data quality, including data profiling, data quality evalution and data repairing.
It effectively meets the demand for data quality in the industrial field.

## Quick Start

1. Download the JAR with all dependencies and the script of registering UDF.
2. Copy the JAR package to `ext\udf` under the directory of IoTDB system.
3. Run `sbin\start-server.bat` (for Windows) or `sbin\start-server.sh` (for Linux or MacOS) to start IoTDB server.
4. Copy the script to the directory of IoTDB system (under the root directory, at the same level as `sbin`), modify the parameters in the script if needed and run it to register UDF.

## Contact

+ Email: iotdb-quality@protonmail.com

# Download

You can download the following files:

<table>
    <tr>
        <th align="center">Version</th>
        <th align="center">Jar with all dependencies</th>
        <th align="center" colspan="2">Script of registering UDF</th>
        <th align="center" colspan="2">User Manual</th>
        <th align="center">Supported IoTDB Version</th>
    </tr>
    <tr>
        <td align="center">In progress</td>
        <td align="center"><a href="https://thulab.github.io/iotdb-quality/download/iotdb-quality-2.0.0-SNAPSHOT-jar-with-dependencies.jar">Jar with all dependencies</a></td>
        <td align="center"><a href="https://thulab.github.io/iotdb-quality/download/register-UDF.bat">Windows</a></td>
        <td align="center"><a href="https://thulab.github.io/iotdb-quality/download/register-UDF.sh">Linux/MacOS</a></td>
        <td align="center"><a href="https://thulab.github.io/iotdb-quality/download/UserManual_en.pdf">English</a></td>
        <td align="center"><a href="https://thulab.github.io/iotdb-quality/download/UserManual_zh.pdf">Chinese</a></td>
        <td align="center">>= 0.12.0</td>
    </tr>
</table>