What methods and practices do you apply when working with data models in your projects?

In C# projects, I usually apply the following methods and practices:

• Using ORM (e.g., Entity Framework) for convenient mapping of objects to database tables.
• Separating models into layers: Data Models, View Models, and Domain Models for better code organization.
• Applying Data Annotations or Fluent API for validation and schema configuration.
• Using DTOs (Data Transfer Objects) for data transfer between layers and services to hide internal model structures.
• Regularly applying database migrations to synchronize the model and schema.

Example of a simple model with Entity Framework:

public class Product
{
    public int Id { get; set; }
    public string Name { get; set; }
    public decimal Price { get; set; }
}

And the database context:

public class AppDbContext : DbContext
{
    public DbSet<Product> Products { get; set; }
}