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Asked: 2026-05-11T15:48:44+00:00

I am learning ASP.NET MVC and I like it. However, I am very confused

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I am learning ASP.NET MVC and I like it. However, I am very confused about the right approach to namespacing my models.

While dissecting the NerdDinner sample app I noticed that everything in the Models folder belongs to the Models namespace. The data mapping classes, repositories, error rule management, etc., belong to the same namespacing level.

I understand that this folder was inspired by frameworks like Rails and friends, and that it is required to justify the M in the MVC title but; doesn’t an automatic Model namespace destroy any chances of writing business logic that is both detachable and portable across different systems and implementations?

Should I namespace my business logic below this Model namespace or should I ignore it completely and classify my classes in a more framework independent manner?

Are there any complex and good ASP.NET MVC sample apps out there that would demonstrate this?

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  1. I would classify your classes in the way that makes the most sense to you, I suspect they used that namespace in the Nerd Dinner sample app because from a learning stand-point it is nice for a developer to always see that they are in the Model portion of the application.

    Personally I don’t put anything in the Model folder and create separate projects for my entities (App.Domain) and for domain services (App.Services). I also create .Tests projects for both projects.

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