Thread by @DellAnnaLuca

DOES JUST IN TIME (JIT) BRING FRAGILITY?

JIT brings fragility if paired to an empty warehouse (no redundancy).

JIT brings antifragility for it allows problems to surface so that they're addressed before it's too late.

(thread, 1/N)

2/ Just In Time (JIT) is usually explained as the idea that the truck with components arrives at the factory just at the moment in which components are needed, so that they don't have to be stored in a warehouse, which is a waste in handling time & storage costs & immob capital

3/ IMHO, it's misleading

Just In Time works because it surfaces problems so that they are addressed before it's too late (antifragility)

If you have JIT & a truck arrives late, you will make damn sure that the next time the truck arrives in time. Strengthening the supply chain

4/ A stocked warehouse and Just In Time aren't opposite ends of a spectrum; they're separate axes

You can have a stocked warehouse and have rules that it always has be at a given level every day

Getting the best of both:
- redundancy from warehouses
- antifragility from JIT

5/ I talk more about this in my book "Best Practices for Operational Excellence", paperback here: amazon.com/Best-Practices…

Ebook on gumroad gumroad.com/dellannaluca

6/ You might also enjoy my thread on the Toyota Production System (TPS)

https://twitter.com/DellAnnaLuca/status/1114041596146622465?s=20

7/ Also a reminder that my previous corporate job was in Operational Excellence and I am always available for short-term consulting engagements Luca-dellanna.com/contact

In case your co had been working with others in the past that brought solutions that crashed during this crisis