olemus
tehnilise toote jaemüüja teenus klientide abistamiseks
probleemide korral, sõltub firmast ja tootest

näide
ISO/IEC/IEEE 24765:
teabe, abi ja koolituse andmine tarkvara installimiseks ja
töökorda seadmiseks ta ettemääratud keskkonnas ning
edenenud võimaluste levitamiseks kasutajaile
= providing of information, assistance, and training to install and make software operational in its intended environment and to distribute improved capabilities to users

ülevaateid
https://www.goboomtown.com/blog/product-support-vs-customer-support

https://www.quora.com/What-are-the-differences-between-technical-support-product-support-application-support-jobs-in-MNCs

https://www.lawinsider.com/dictionary/product-support

https://en.wikipedia.org/wiki/End-of-life_product

https://www.hiddenbrains.com/blog/approaches-and-types-of-software-product-support-and-maintenance-service.html

https://apps.dtic.mil/dtic/tr/fulltext/u2/a606472.pdf