Q: What do ‘discrete’ categories mean on page 5 in the area of “Organization of Objects/Data” which you didn’t cover?
A: “Discrete” means separate, non-overlapping.
When it comes to the “Organization of Objects/Data” link, it’s the skill of creating/using categories that are distinct, rather than having “Miscellaneous” file folders and many junk drawers, etc.
When it comes to the links in the Productivity Chain, each link’s skill set is distinct from every other’s. That’s why there are twelve links in the Chain. If there were ten distinct skill sets, there’d be ten links.