Anatomy of an Application
Database, views, and components, and how a click travels through them.
Every app is four layers. Someone clicks 'Place order.' The component collects the click, logic validates the cart, the database writes the record, and the view updates to show a confirmation.
That chain fires in under a second. Understanding it means you can describe exactly where a bug lives — and give your builder a precise target to fix.
Tap a plane, or press Place order to watch one click travel down.
Words you will hear
- Table
- A spreadsheet-like list of one kind of thing — orders, users, products.
- Record
- One row in that list. One order. One user. One product.
- Component
- A self-contained piece of UI defined once and reused everywhere it's needed.
Interactive demo
Click a layer of the app
Click a layer
Views
The screens a person actually looks at. Each web address maps to one view, assembled out of components.
How a click travels
component click -> logic checks the rules -> database records the change -> view re-draws with the new data
What makes this work
The pieces underneath
Try it
10 minPick any app you use every day. Write out its three most important tables, its four main screens, and three components that appear on more than one screen. Then ask an AI builder to scaffold exactly that structure.
- If a thing has a list view and a detail view, it is probably a table.
- Anything appearing on more than two screens should be one component.
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