Joshua Kerievsky posted this most excellent table illustrating some of the differences between Agile and Lean Startup.
I think this is so awesome because it shows how much more real everything is in Lean Startup.
Take Velocity vs. AARRR (AARRR are Dave McClure’s startup metrics that measure things like how many people are visiting your site, buying your product, etc.). In Agile, we measure progress with Velocity, we say “how much software did we develop this week?” Lean Startup says “Who the hell cares how much software we developed this week – how many people bought our product or used our software” – you know, the things we actually care about.
Source: Industrial Logic’s BLogic