Quality management system

I never saw any use of the words “quality income” and ISO 9001.

About the term “cost of quality” you can see it being used in this article - How to measure the cost of quality in line with ISO 9001 principles - https://advisera.com/9001academy/blog/2019/10/28/cost-of-quality-how-to-measure-it-in-line-with-iso-9001/ Before ISO 9001 I used the term “cost of quality” as a designation to the sum of cost of quality prevention (like training), quality control (like controller’s wages) and quality failure (like cost of defects and rework).

Cost of quality can be a quality objective.

Below, you can find more information about quality objectives:

• How to Write Good Quality Objectives - https://advisera.com/9001academy/knowledgebase/how-to-write-good-quality-objectives/
• Free online training ISO 9001:2015 Foundations Course - https://advisera.com/training/iso-9001-foundations-course/
• Book - Discover ISO 9001:2015 Through Practical Examples - https://advisera.com/books/discover-iso-9001-2015-through-practical-examples/