answers rated A+ 2025/2026
JIT (Just in time) - correct answer ✔you try to eliminate waste: system with no waste (Dell making
products as needed)
Lean manufacturing - correct answer ✔it's okay to have a little waste
Example of why Lean works and JIT became Lean - correct answer ✔--Ribeye steak is supposed to taste
better than sirloin. Why does the sirloin taste worse? The fat content. Would tasting a whole fat steak
taste better? Not necessarily.
---Waste is fat. Fat is an excess of what you have. If you're talking about just in time, you want sirloin.
But what we learn is that it doesn't taste as good as ribeye. Lean has a little fat, so it's okay to have a
little bit of inventory as long as it has a reason and the quantity is at the right place
How did JIT come to American manufacturing? - correct answer ✔JIT was popularized by Toyota
(Toyoda). The JIT idea he got when he was working in a grocery store. The idea of how you restock the
shelf. You stock when they're empty. JIT is misunderstood. We thought that a company should not have
waste at all. That's why we tried to eliminate waste. They actually, tried to minimize it not get rid of it
altogether. Lean is the American version ofwhat the Japanese did, but now we realize what the Japanese
meant so now they are the same thing.
Getting something 4 hours away means the travel time is various. This means you need safety stock,
because the guy could be 1 hour late, etc.
Push System - correct answer ✔production begins based on forecasted demand (what you think is
future or forecasted demand is when you start production)
Walmart (something you could buy off a shelf)
Chipotle is push because they cook before the customer comes. The final assembly is the pull part of
Chipotle
, Pull System - correct answer ✔the production is triggered by real demand
--Dell (do a custom suit/dress)
--Cake Boss ordering custom cakes
Benefits and drawbacks - correct answer ✔---Benefits
Push: Nobody has to wait to receive their product, product availability, easier to plan
Pull: no inventory
---Drawbacks
Push: Lots of inventory
Pull: can't give items to people on demand
Kanban - correct answer ✔it's a card containing information to signal the other guy to do something
-Scheduling system for lean manufacturing and JIT. It uses cards that track production within a factory
-The main goal is to limit buildup of excess inventory at any point in production, which reduces
inefficiencies
-Advantage is that it establishes an upper limit work in process inventory to avoid over capacity
Jidoka - correct answer ✔It highlights the causes of problems because work stops immediately when a
problem first occurs. This leads to improvements in the processes that build in quality by eliminating the
root causes of defects.
Kaizen - correct answer ✔(Continuous Improvement) is a strategy where employees at all levels of a
company work together proactively to achieve regular, incremental improvements to the manufacturing
process. In a sense, it combines the collective talents within a company to create a powerful engine for
improvement.
--Lean Production