It's all yours Don. J4, the committee which I chair develops them. Now a few details. First the new data types. Validates is based on the description of the data.
Conditions specify which redefinition applies.
A range of values for an item can be specified. Relationships between items can be specified. After the validate executes you check the error indicators. X and NX will be used to delimit untranslated alphanumeric and national hex literals, respectively. There will be no translated hex literals.