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The M in MVC stands for model and
represents an application's knowledge,

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in other words,
what the application knows or its data.

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Models represent data and
interact with the database.

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Creating, reading, updating, and
deleting data, or CRUD for short.

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For example,
say a user visits a movie page on IMDb,

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the URL is handed to the controller.

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Remember, controllers handle all
of the communication in the app.

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The controller knows it needs some data so
it talks to a particular model for

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movie information.

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The controller doesn't know how
the model does what it does.

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It just says, hey model,
I need information about Toy Story.

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And the model doesn't know anything
about how that information will be used.

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For example,
what the final web pages will look like.

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The model doesn't know anything
beyond its single function.

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An application will have different
models for different pieces of data.

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For example, a user model with
data related to users on a site,

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a movie model for a movie,
an actor model for actor data, and so on.

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After receiving the request the model
returns the data to the controller.

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In the IMDb example the model hands
the Toy Story data to the controller.

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And the controller, as you'll see next,
hands the data to the view.