user CRUD in .NET

I need add/Update/delete/list Table Fields ============= Company Contact Person Email Address Phone Address City State Postal Code Country Option to print, export to excel, Export to PDF, Export to csv You will use below code architecture 1. ASP.NET MVC Razor 4 or 5 for Presentation Layer. Ajax Calls. Validation will be in Model only. 2. MVC Web API using Entity Framework 6. This will return Json data. 3. Business Logic Layer. This will have function . Each function will call WebAPI url. 4. Object Model. All classes will be defined in this project. You will return Model from Business Logic layer which doing deserialization of Json data. Multiple users will access this page. So it should not hang the application No hardcodings