In our environment, we take data from a variety of sources and load it into tables. Normally I take a text file and load it into a cursor that matches the structure of my bizobj, scan the cursor and use scatter and gather memvar to bring the data in.
EXAMPLE

lcAlias = This.GetAlias()

=AFIELDS('aTemp', lcAlias)
CREATE CURSOR tmpCursor FROM ARRAY aTemp

APPEND FROM myfile TYPE SDF
SCAN
SCATTER MEMVAR
If !SEEK(m.Key, lcAlias, 'cid')
SELECT (lcAlias)
This.new()
GATHER MEMVAR
ENDIF
SELECT tmpCursor
ENDSCAN

USE IN tmpCursor

If anyone has any other approaches they can share using bizobjects, I'd like to hear. Thanks.

Jim