Removing semantic types
You can delete one or more of the semantic types from Talend Dictionary Service and remove them from the list of recognized data types in Talend Cloud Data Stewardship.
You can delete both predefined semantic types as well as predefined standard types.
The variety of semantic types that are present by default in Talend Cloud Data Stewardship can be troublesome in certain situations. For example, a five-digit number can be interpreted as a American ZIP code, but also as a French or German one since they share the same format.
Let's say that you are working in an American company, and you only have to deal with data coming from American clients, including ZIP codes. You would prefer to keep only the American ZIP code in the list of recognized semantic types.
Using Talend Dictionary Service, you will simply remove the other semantic types that match the five-digit format and only leave US Postal Code. The change will then be ported instantly in Talend Cloud Data Stewardship, and you will from now on validate a ZIP code column against the semantic type US Postal Code.
Procedure
Results
You have deleted all the semantic types compatibles with five-digit numbers but one. From now on, when adding new data models, you can set only US Postal Code as the semantic type for columns with ZIP code data.