When working with a complex, wide spread or poorly defined process it is often worth chasing the assets from start to finish.
Those can be done from either end.
Looking at what starts the process whether it be an unpainted vase or a database of survey results, or look at what is produced a painted and packaged vase or a clearly written analysis of why a particular type of tap is preferable for 32 to 43 year old home owners.
When going forwards you will be asking well, how does that become that. When going backwards you will be asking how did this happen. In either scenario it is important to always understand where the tertiary steps originate from. How did the information for that thermal printer get there for this package.