In Analytics for LS Central version 2022.1 and later we have decided to provide the Acronym and Dataset Item classifications and descriptions in a publicly accessible Power BI report.
In this report you can view descriptions for the different types of dataset items and download the Acronym and Dataset Item excel file for futher exploration.
If you hover over a dataset item in the table, you can see in which reports the dataset item is available.
This report will be updated with new measures with each release of Analytics, so if you have an older version of the report they might not contain all the measures listed.
There is also a page for the Dataset Items in reports for LS Insight version 2020.4.1 and older.