What is Validated data in Laravel, and what role does it play in a real application?

What is Validated data in Laravel, and what role does it play in a real application? In Laravel, validated data should be understood as part of a larger application architecture rather than as an isolated API call. Form Request classes can expose validated data so controllers do not need to re-implement the same checks. A strong understanding includes its purpose, the layer where it belongs, the data or request flow it affects, and the situations where another mechanism may be more appropriate. Practical context: Form Request classes encapsulate validation rules and authorization checks for a specific incoming request workflow. The specific focus here is validated data: Form Request classes can expose validated data so controllers do not need to re-implement the same checks. This question is designed to test not only terminology, but also how the concept fits into Laravel's request, application, database, security, or deployment workflow.