Document analysis is one of the interpretative procedures. It is a systematic approach to qualify both electronic and non-electronic media . Sources are searched for and selected according to the research question, which should include all sources suitable for the research question. These sources are then evaluated again for their significance. Afterwards, linguistic and content analysis begins. The method comes from the social sciences, where this method is also applied [compare 3]. It is suitable to collect data to support the addressed field and to answer corresponding questions . Document Analysis is used in Grounded Theory .
In a first pass, the locations in the material where the searched topic is addressed are marked . Then the contents are analyzed and summarized. These two steps are also called coding. Finally, the contents are discussed in relation to the question .
Advantages are :
- Efficient method
- Lack of obtrusiveness and reactivity
Disadvantages are :
- Insufficient detail
- Low revivability
- Biased selectivity
-  Bowen, G. A. (2009). Document Analysis as a Qualitative Research Method. Qualitative Research Journal, 9(2), 27.
-  Owen, G. T. (2014). Qualitative Methods in Higher Education Policy Analysis: Using Interviews and Document Analysis. The Qualitative Report, 19(26), 1.