The concept of Softview is the ability to make minor changes to a deployed system without the need to send up a new model and restart everything.
It has been shown to be very practical to be able to patch views in a faster pace that model deploy.
To facilitate this both MDrivenTurnkey and MDrivenServer expand the complete model as files in the App_data/ModlrLeanComplete folder whenever a new model is detected (ie uploaded to the MDrivenServer).
All your ViewModels will thus end up in App_data/ModlrLeanComplete.
You can overwrite these with better versions by just xcopy the span file.
The next time a request for ViewModel with that name is needed we will now check if the file is newer on disk than when we read it last.
If so we will re-read it.
The razor pages displayed by Turnkey will also look if there is a newer version read since last - and recompile a new html version for delivery to the client.
This new Softview strategy will also lessen the memory usage of server software on the second and rest starts - since the views now kept in memory will be only the ones actually requested by any user.
See also ModlrLeanLoad