Verb
(intransitive, often with of) to compile an inventory; to take stock; to inventory; to inventorize.
(intransitive, often with of) to assess a situation
Source: en.wiktionary.orgTake inventory of everyone with whom you have contact. Bruce Lee
There are two ways to extend a business. Take inventory of what you're good at and extend out from your skills. Or determine what your customers need and work backward, even if it requires learning new skills. Kindle is an example of working backward. Jeff Bezos