Online analytics or real-time analytics is a relatively new requirement that is gaining popularity. The whole idea behind online analytics is to provide a richer and engaging user experience to the user. Online analytics works in a way where data is collected, analyzed, and crunched in real-time.

In good old early days of web revolution, analytics had only one principle stake holder which was the website management team. They used to collect the data and do analysis in the offline mode, and then used to apply it for business usage. This technique of offline analysis is still needed. However, in today's world when everything is connected to social media, it is imperative that the user's views, his/her social group, and his/her opinion should be reflecting in his/her shopping experience. For example, let's say a user and his social group are talking favorably about some music or book. When the user checks into his favorite e-commerce site, the home page of that site has this...