What is Facade?
A simple front door to a complex subsystem. Callers use one easy API instead of many internal types.

one call · tax, fraud, pay inside
Facade provides…
Write it in your own words in the app.
In real work
Facade: CheckoutFacade.charge() hides tax, fraud, and payment behind one call from the UI.
In the illustration
The one button is pressed; behind the panel the tax wheel turns, the fraud scanner sweeps and the payment stamp falls in order, and a receipt slides out the front.
Put a facade in front of the six image-processing classes in your coding agent: one ImageService with resize, crop and compress that the UI calls instead of the internals.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
One term a day, a short quiz, and sentence practice that checks your own words.
02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.





