# Process Variables There are settings we have to do across our TilliT account to create a vocabulary for our digital factory. As seen in [Definitions](/tillit/getting-started/definitions.md), Process Variables play an important role and the configuration section is where you will set this. The Process Variable represents the measured value or parameter of a particular part of a process that is being monitored and controlled. List the **relevant process variables** and think about how things are stored, and measured, recipe settings, limits , design parameters etc. Next, think about what their **Unit of Measure** is e.g litres, Degrees Celsius, carton etc. For example: temperature in Celsius degrees and batch size in litres. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.tillit.cloud/tillit/planning/data-gathering/configurations.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.