CATI – standardised computer assisted telephone interviews;
CAWI – computer assisted web interviews;
CASI – computer assisted survey interviews where a respondent fills in a questionnaire on his/ her own, typing answers to questions on the laptop delivered by an employee of the research organisation;
CAPI – research method where respondents are interviewed with the aid of mobile appliances (i.e. laptop, palmtop) and their answers are directly typed on these appliances;
PAPI – a method of gathering information in quantitative market research and opinion polls, face to face individual pen and paper interviews.