The truth is, the difference between a good BA and a great BA is the size of their toolkit. A handyman with only a hammer sees every problem as a nail. A BA with only a few techniques sees every project as a generic checklist.
I pulled out this PDF and flipped to the section (page 112). Within two hours, we ran a Fishbone Diagram (Ishikawa) workshop followed by a Pareto Analysis.
To give you a taste of what the "123 Essential Tools" PDF contains, let’s break down the five core pillars every BA must have on speed dial.