Extension:EventLogging/Comparison notes

These are notes for comparing our current ideas about how to track events and funnels on Wikipedia with current industry standards.

Mixpanel

 * Best front page/interactive dashboard out of all the others, imho – clean & simple timeline of event fires
 * Tracking is separated out by user-specified events (e.g., "accept eula", "submit answer") and built in properties (browser, location, referrer, search engine/keyword). Custom funnels can be created by combining these elements and can be applied retroactively (past day, past week, past 30 days)
 * Also a cool segmentation feature to create an ad hoc funnel – useful for playing around with data slicing in real time.
 * Retention feature: shows numbers and percentages of users who did a one-time function and then came back to do anything in the following days, weeks, months, etc.