SLI and SEI lead with an involved perceiving function, while IEE and ILE lead with an abstract perceiving function, and this would be "outer world" and "inner world" in probably the most typical sense. Aushra's idea of extraversion vs. introversion is the thing about objects and fields (and she notably actually considers abstractions to be part of the "outer world"), and Jung's is something entirely different. Technical terminology like that tends to be really variable depending on what you're working with. This is why we need to have clear language and generally just avoid technical terminology that isn't defined first like the plague.