Using TAMS Analyzer
TAMS Analyzer for Macintosh OS X: The native Open source, Macintosh Qualitative Research Tool
TAMS stands for Text Analysis Markup System. It is a convention for identifying themes in texts (web pages, interviews, field notes). It was designed for use in ethnographic and discourse research.
Videos on Tour of TAMS Analyzer
TAMS Analyzer: Counting code sets
Manual and documentation