The process of selecting representative elements from a population is called sampling. Sampling involves selecting a subset of individuals or items from a larger group in order to draw conclusions or make inferences about the entire population. Various sampling techniques, such as random sampling or stratified sampling, can be utilized to ensure that the selected elements accurately represent the population characteristics.

Derek Charles Cornish has written:

'Sampling systems for process analysers' -- subject(s): Analytic Chemistry, Chemical process control, Sampling

Sampling Theorum is related to signal processing and telecommunications. Sampling is the process of converting a signal into a numeric sequence. The sampling theorum gives you a rule using DT signals to transmit or receive information accurately.

sampling is a one type of process use for converting into analog signal to digital signal.