The quick answer is...
Use Convention Over Configuration
We may use convention over configuration to set up default D2W rules.
In D2W, rules with a higher priority take precedence.
The above will override, or take precedence over the following:
We may exploit this feature of D2W to set up a set of rules as conventions or defaults.
As an example, the above rule may be set up to be a default for the editing of the key
firstName instead of having to define separate rules for every entity that has a
firstName. In other words you may define the one rule (above) instead of the following three rules:
In this manner we can keep the number of D2W rules down to a minimum - which vastly improves maintainability.
Rule of Thumb
Set a lower priority to generic rules.