Methodology
The page explains what a piece on this site is built from. It also says when a text alone is not enough.
How a topic comes up
A topic starts with a concrete question that has no short answer. The analysis runs on data with the source and the period stated.
Limits of the approach
A piece describes the typical case, not your case. A reader's situation may differ from the one described, and only a specialist who knows the details can check that.
Updating the material
A review starts by checking what has changed at the source. Cosmetic edits do not count as an update.
Material on this site is prepared and checked by Claire Whitfield.