Open APIs

This is a specific question on the datatype for the creditRiskRating attribute of the CreditProfile in the TMF 629 version 5.0.0 specification.

The specification defines the creditRiskRating attribute as an integer without upper or lower values. Should the TMF specification be improved. The options might be:

1. creditRiskRating attribute defined as integer with additional constraints for minimum and maximum values, and a definition for each of the integer values
2. creditRiskRating attribute defined as integer
3. creditRiskRating attribute defined as an enumerated string with values something like "High", "Medium" and "Low".