what is gamification
Gamification is the use of game design techniques & mechanics to solve problems and engage audiences. Gamification works by making technology more engaging, by encouraging users to engage in desired behaviors, by showing a path to mastery and autonomy, and by taking advantage of humans' psychological predisposition to engage in gaming. Source: Wikipedia
HOWWHY
how to do data visualization
There is a variety of handy tools for data visualization and analysis: Best tools, 50 Great examples, 22 Free tools, and 16 Awesome tools. I have tried MS Office (Word & Excel), Report Builder 3.0 (with SQL Server 2008 R2), Telerik, Qualtrics, Tableau, and Google charts. In this site I will focus on a JavaScript library D3, developed by Michael Bostock, for visualizing some data in gamification studies.