•    Paper based interviews (PAPI)
•    Computer based interviews (CAPI)
•    Computer-aided telephone interviewing (CATI)
•    Face to Face (F2F)/Door to Door (D2D)
•    Target Sampling approaches
•    Central Location Test (CLT)
•    In-home product Placement test (IHP)
•    Web survey
•    Intercept interview
•    Mail
•    Online
•    Mystery shoppers