My question Are there popular classification schemas of human activities? on Project Management Stack Exchange has been closed as off-topic. It is about classification of human activities into e.g. Paid/Unpaid, Learn/Apply, IT/Music/Exercise/Others. Is there any Stack Exchange where I can ask this question?
For reference, here is a copy of the original question:
I am trying to gain insights into how I spend my time professionally and personally. I plan to track a large portion of my activities using time tracking software and assign classes to each activity from multiple mutually independent classification schemas. The schemas are designed so that each activity falls into exactly one class of each schema.
E.g., currently I am considering these classification schemas (excerpt):
Area of life:
- Information technology
- Software development
- Others
- Music
- Vocals
- Guitar
- ...
- Physical exercise
- Weight training
- Stretching
- Cardio
- ...
Payment:
- Paid
- Unpaid
Skill stage (cannot find a better name for this):
- Learn
- Apply
Here are some example activities with their classes:
Activity Area of life (Level 1) Area of life (level 2) Payment Skill stage Write software at my job Information technology Software development Paid Apply Learn new framework at my job Information technology Software development Paid Learn Watch guitar tutorial Music Guitar Unpaid Learn By having multiple schemas I avoid the combinatorial explosion I would get with only one, and I retain more flexibility for reporting.
- Information technology
- Software development
- Paid
- Learn
- Apply
- Unpaid
- Learn
- Apply
- Others
- Paid
- Learn
- Apply
- ...
- ...
As usual, the devil is in the details, and thus it is not easy to come up with schemas that work for all of my activities. So I wonder whether there exist some widely used activity classification schemas like these, e.g. de facto standards from popular software, or maybe even official ones from standardization organizations. So far, I have only found some schemas in research papers, but it seems to me that these have been created ad hoc just for these papers:
General purpose:
https://www.researchgate.net/figure/Classification-of-Activities_tbl1_220413119
https://www.researchgate.net/figure/Examples-of-living-activity-classification_fig1_311621874
https://www.researchgate.net/figure/2-Generic-Activity-Classification-used-in-CHASE_fig3_265251283
https://www.researchgate.net/figure/Classification-of-Activities_tbl1_258957597
https://www.researchgate.net/figure/Classification-of-Activities_tbl1_220413119
https://www.researchgate.net/figure/Classification-of-activities_tbl1_265223072
Marketing:
Development of Food Technology: