Who categorized user studies into three categories :
(i) Behaviour Studies,
(ii) User Studies, and
(iii) Information Flow Studies.
1
S.R. Ranganathan
2
Voigt
3
Philip B. Crosby
4
Menzel
Who categorized user studies into three categories :
(i) Behaviour Studies,
(ii) User Studies, and
(iii) Information Flow Studies.