Experimental methods also differ because of kinematics or dynamics of deformation,
namely: force or velocity may be maintained constant or varied according to a given protocol;
in modern instruments variations and/or combinations thereof are frequently used.
Properties of final product may be defined and the technological process may be
controlled either by removing samples from a process and studying them in the laboratory,
or by using in-line measurement techniques during processing. The design and construction
of the utilized instruments may vary accordingly, but principles of measurements
remain similar.