When you think about it, so many problems could have been prevented and so many business rules could have been easier to express if there was some standard way

When you think about it, so many problems could have been prevented and so many business rules could have been easier to express if there was some standard way to track the origins and veracity of data. Maybe also some way to track if the data is meant to be transient or meant to be written back. The more such constraints which could be described up front, the better.