Developer
Developer features the basic module in the topStud family of programmes made
up of topConfig, topRecord, topFNE and topTable. These four basic modules
support performing quantitative studies ranging designing the questionnaire
and surveying, to analysis and presentation.

Analyzer
Analyzer features extra modules for evaluating and processing data recorded.
The software package contains the following modules: topCheck, topCount,
topExport and topImport.

Interviewer
Interviewer features the following three modules: topInter, topField and
topCode for distributing and performing CAPI surveys. The studies set up
using topStud Developer are distributed and performed with these three
modules. topCode allows open questions to be coded directly on-site at
the interview location. The individual parts are then collated centrally
for evaluation following performance of the field phase.