olemus
toote elutsükli lõppjärk
= the final stage in the product life cycle

ülevaateid
https://www.linkedin.com/pulse/how-plan-product-retirement-arvind-prakash

https://buscompress.com/uploads/3/4/9/8/34980536/riber_riber2012-285__403-412_.pdf

https://www.linkedin.com/advice/3/when-should-you-retire-product-from-your-portfolio-gbtcc

https://www.pragmaticinstitute.com/resources/articles/product/end-of-life/