In here the researcher should know,
- Why Should do the research
- How does the research become important
- How will it benefit for selected people after completing it.
When the researcher has answered those questions, there will be the purpose of the tasks.
The researcher should be understand whether it is able to deal with the research topic and there by to analyse the data what were collected according to the different units of the analysis and finally overall survey report will show that task is successful.
It make sure that the purpose of the research it have met.