---
title: "Why Do Factories Use Statistical Process Control Instead of Inspecting Every Part?"  
description: "Why Do Factories Use Statistical Process Control Instead of Inspecting Every Part?"  
author: "Nisha Gurung"  
published: 2026-10-21  
canonical: https://answers.mindstick.com/qa/118013/why-do-factories-use-statistical-process-control-instead-of-inspecting-every-part  
category: "Mix Category"  
tags: ["manufacturing", "quality control", "industrial engineering"]  
reading_time: 1 minute  

---

# Why Do Factories Use Statistical Process Control Instead of Inspecting Every Part?

In manufacturing, a defect in one component can create a costly problem downstream. So why do many production lines monitor samples and process trends instead of checking every single part?

I’m interested in the practical trade-off: how does **statistical process control** help a team spot a process drifting out of spec, and what kinds of defects or production environments make sample-based monitoring less reliable? It seems like the answer would depend a lot on the consequences of a missed defect.


---

Original Source: https://answers.mindstick.com/qa/118013/why-do-factories-use-statistical-process-control-instead-of-inspecting-every-part

Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.