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copied!<p>Wow. That's a hard question to answer without having a day to sit down and speak with you. But here goes a shortened version anyway.</p> <p>First, attempting to port a framework or any characteristics of that framework from one language to another seems like it maybe be trying to shove a square peg in a round hole. While I don't doubt that features (e.g. customer and customers) can be ported, I could certainly argue that they shouldn't be ported. Sticking with the customer.CalculateSalary exmaple, you could use .NET and create an extension method for IEnumerable that did the same thing, eliminating the need for that Customers class. I realize you may have other features as well, but that's just an example. Another example is using LINQ to sort IEnumerable.</p> <p>Second, I have personally found that having the persistence methods (e.g. Save, Delete, etc.) inside of the object doesn't work well in a large system, particularly when dealing with WCF. It seems to work better in these scenarios to use some type of repository later, which seems like it would also play well with your point of switching to Oracle in the middle of development.</p> <p>I also want to totally disagree with you on the bullet about fitting well into MVVM. To me, the view model is the glue between the model and the view. It is not only likely that the view model would need to know about the view (hence, WPF specific features), but desired that it know about it. ICommand is a critical interface for the view model to know about, and is one of the WPF-y assemblies (WindowsBase, PresentationCore, PresentationFramework, can't remember which). Also, INotifyPropertyChanged is also critical to data binding and should be implemented in all view models, and has nothing to do with WPF (comes from System.ComponentModel i think?).</p> <p>That's my two cents. Again, it's really difficult to explain this in a short response to your question. I would recommend using the pattern for a while before making a framework for it. Good luck!</p>

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