materials.md

Reconciling materials to AAT

1. Load DATE-materials-INSTITUTION-DATATYPE.csv into OpenRefine; rename DATE-materials-INSTITUTION-DATATYPE-enriched.csv
2. Add workflow columns: JSON
3. Copy material_as_recorded column, match new recon-material column against fixed list from AAT, add authorized_label_add and structured_value_add columns; finalize workflow: JSON
4. Remove any facets and filters
5. Export full CSV from OpenRefine (retain file name)

json/material/010-material-workflow.json
json/material/090-material-finalize.json