Causal theory, in Six Sigma terms, means that you create output (y) from an input (x) and a function (f). Clear as mud so far? Don’t worry.
An Activity Network diagram graphically depicts your project timeline by mapping tasks and the best, worst, and average case completion times.
Process Decision Program Charts (PDPC) have 2 main uses: documents steps to completing a process & impact analysis via systematic exploration
The Control phase is the fifth and last phase of a DMAIC process. The main activity in the Control phase is to control the improved process.
The multi-vari chart shows you variation by separating it into three possible sources (within-piece, piece-to-piece, and time-to-time.)