Product System - an overview
File:Life Cycle Thinking Product System.jpg - Wikipedia
System Models
Product Breakdown Structure
System Models
NPR 7123.1B - Chapter3
Product Systems Engineering - SEBoK
What is PIM?
Kanban system: how does it work in logistics? - Interlake Mecalux
My product management toolkit (48): Systems Thinking
Industrial Product-Service Systems—IPS2 - ScienceDirect
Product-service systems - Vlaanderen Circulair