Now and then you’ll face some important task that needs to be done on the spot, with no delays. Usually single-shot operations. For that, the key performance indicator is GTD.
Developing a project using .NET Core and Entity Framework, using an existing database, does not come with a Model update wizard. But still, it doesn't have to be a daunting task.
If you're working with JSON, say for REST web services, and you don't have the class to unmarshall the response, Visual Studio can automatically generate the class for you.