From GSIM v1.0 Glossary
Survey Population
A Population for which information can be obtained in a survey.
A Population which can realistically be studied (example: people currently residing in the province of Ontario not in an institution nor in a remote northern location nor temporarily out of the province). The Survey Population is therefore often a subset of the Target Population
Synonyms: object class
Frame population
A Population represented by records in a frame, which is the observable part of a Target Population and provides a reasonable approximation to it.
Example: most recent population census frame
Synonyms: object class