The 5 Whys is a technique or process where a set of iterative questions are asked multiple times until the root cause of the problem is determined.
A Kanban Board is introduced as a white board, which allows employees to utilize sticky notes, colored magnets and push pins.
The reason why software industry has developed an interest towards this unique methodology is that it has a clear approach towards waste elimination.
DFSS is a methodology used for product development, but DMAIC is more inclined towards the establishment of continuous improvement.
When the service industry took a step towards Six Sigma and established some great results, it became evident that it was time to implement the methodology.