---
title: "Critical to X"
chunk: 1/1
source: "https://en.wikipedia.org/wiki/Critical_to_X"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T11:46:51.821409+00:00"
instance: "kb-cron"
---

Critical to x (CTx) is a Design for Six Sigma approach that refers to the key factors that are essential for the successful completion of a project or process.
These factors may be identified through a CTX tree.


== Critical to X factors ==
The following is a list of Critical to X factors:

Critical to quality (CTQ)
CTQ tree
Critical to cost (CTC)
Critical to process (CTP)
Critical to safety (CTS)
Critical to delivery (CTD)


== References ==