In this chapter is assumed that the general planning of the
area sample survey have been undertaken, as described in the previous
chapter. Therefore, the basic characteristics and parameters of the area sample
survey have been determined including: the geographic area of interest, the
sample size, the criteria for defining the strata, the target size of PSUs and
segments, as well as the survey variables, their required level of precision,
the estimation methods, the data collection and the data processing procedures.
Also it is assumed that the survey requirements in personnel, equipment,
materials and budget have been established.
This chapter covers the techniques used for the subdivision of
the total survey area into strata and each stratum into an ordered
group of measured PSUs. The accumulated size (target number of segments)
of the PSUs provides the size of each stratum and of the total