> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pads4.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Conditions

> Reference of every condition type available in the PADS4 Designer rule editor, including data provider, system, and Data Vault values.

When you create a rule in PADS4, the **condition** (the IF clause) defines the value that PADS4 evaluates during playback. You can compare against fixed values, system information, or data coming from a data provider or Data Vault.

The sections below list every condition type available in the rule editor, grouped by source.

## Static and runtime values

* **Constant** — Use a static value. Manually specify the **Value** to be used as the constant.
* **Viewer variable** — A viewer variable that is replaced by its actual value at runtime.

## Data provider values

Use these conditions to react to data coming from a data provider or Data Vault.

* **Current Data** — Use the current column and current row of the active Data Vault.
* **Previous Data** — Use the current column and previous row of the active data provider. Lets you compare two consecutive data values.
* **Other Column** — Use the current row but a different column of the active data provider. Manually select the **Column** to be used.
* **Other Data** — Use a specific data provider, column, and row. Manually select the **Data Provider**, **Column**, and **Row** to be used.
* **Row Count** — Use the number of rows of a specific data provider. Manually select the **Data Provider** to be used.
* **Current Row Number** — Use the current row number of the active data provider. Only applicable to page elements.

## System date and time

Use these conditions to trigger rules based on the playback PC's clock.

* **System Date** — The system date of the playback PC.
* **System Date Time** — The combined system date and time of the playback PC.
* **System Time** — The system time of the playback PC.
* **System Time (UTC)** — The system time of the playback PC in UTC.
* **System Long Time** — The system time of the playback PC in long time format.
* **System Long Time (UTC)** — The system time of the playback PC in long time format and UTC.

## Presentation context

* **Page Name** — The name of the current page in the presentation. Only applicable to pages and page elements.
* **Page Number** — The sequence number of the current page in the presentation. Only applicable to pages and page elements.

## Viewer

* **Viewer Name** — The unique viewer name of the viewer that plays the presentation.
* **Computer Name** — The computer name of the PC on which the presentation plays.
* **Computer Language Name** — The Microsoft Windows language name of the PC on which the presentation plays.