The interpretation field is where the excavator records what they think a layer means — for example "natural alluvial deposit", "occupation surface", "fill from a later disturbance", or "plowzone". Unlike the descriptive fields such as munsellColor, soilTexture, and culturalMaterials, which record observations, interpretation records judgment about formation and significance. It is optional and free text. Capturing interpretation alongside the raw description preserves the reasoning behind how a site's stratigraphy was read, which is invaluable when the analysis is revisited later.
Technical section
Data model, API, and internals — visible to developers.