In the CDS CommonPerson schema, is it appropriate to use a middle initial in the
middleNames array, or should a middle name be included only if it is longer than one character?
The contents of the
middleNames array is at the discretion of the data holder (DH).
The DSB offers the following general guidance.
If you know the middle name is only an initial then it may be omitted. For example, the source of the data may be a "MiddleInitial" field in another database.
If you already have CommonPerson data with middle initials stored in the
middleNames field, this does not affect compliance, and there is no requirement to correct the data. However in general the DSB recommends data clean up as good practice.