A frame is a representation of a population, used to implement a sampling strategy as, for example,
1) a list frame that lists the identifying units in the population-for instance, a list of all the lakes in the United States between 10 and 2000 ha - or
2) an area frame that consists of explicit descriptions of a partition of the areal extent of an areal universe - like the NASS frame.
---> see also:
"frame" is in the UNSPSC Code "22101719"
Grader frame saddles
"frame" is in the NAICS Code "23813"
(Inofficial Code)
Post frame contractors
"frame" is in the CPC Code "54540"
Concrete services
- erection of reinforced concrete frame services requiring specialized skills or equipment because ...