See the recent Forbes article highlighting the Toyota Flow System from the 2019 World Agility Forum conference that was conducted this October. This Forbes article from Steve Denning, titled “World Agility Forum Celebrates Excellence, Flays Fake Agile”, provides a summary of the keynote speakers and panel discussions from the first couple of days during the conference that includes an introduction to the Toyota Flow System.
https://www.forbes.com/sites/stevedenning/2019/10/13/world-agility-forum-celebrates-excellence-attacks-fake-agile/#24711b008f84