The CAQDAS flag stands for tools that allow researchers to code by themselves the relevant fragment of a corpus of texts. I refer to this coding feature as reflective codes.
Resulting codes can either be part of a pure qualitative analysis or can be used as basis for statistical inferences.
As a consequence of the widespread of such tools, the CAQDAS label tends to be extended to all qualitative analysis software. For an overview, see Harald Klein's website.
Software: Atlasti Cassandre Catma Dedoose Ethnograph Ethos Kwalitan Maxqda Modalisa Mosaiqs Nodepad Nvivo Porphyry Provalis Rqda Saturate Sonal Squanto Tamsanalyser Weft-qda