The interview method is flexible by nature. An interviewer can simplify data
gathering by adapting the interview process according to circumstances as the
individual interview unfolds. Martyn Densecombe (2004) has noted that interviewing
allows for developing a clear line of inquiry (p.189).
As for qualitative data, they are divided into documents and interviews. In
general, qualitative data are comprehensive and rich, allowing a specific and broad
examination and selection of data. Moreover, according to Denscombe (2004),
proper documentation is crucial in allowing researchers to use their own interpretive
skills (p. 280).