In recent years, with the progress of information processing and analyzing technologies, many QDA (qualitative data analysis) programs have been equipped with very comprehensive and perfect functions, and provide us with more possibilities of using software to analyze text and multimedia data. Software can save time, make it easy to find data, and is more standardized. Especially when the data is too much and the analysis takes very long time, the advantage of software becomes more obvious. In addition, the use of software also provides convenience for multiple users to process materials at the same time in a teamwork.

Tableau Desktop is a famous and very powerful data analysis & visualization leader. In addition to professional technology, more importantly, it's a foolproof tool that can make externalization and visualization process to complex data, so that ordinary users are able to easily show their complex data in hand in a professional way with all sorts of graphs.