Create a text file, for each media file, that contains the wikitext which need to be entered verbatim, on the Commons page that goes with the media file. Also create a list with two columns, one with the original file name and one with the filename you will use on Wikimedia Commons. This will be valuable if the GLAM would like to keep track of their images, or if you mess up.
- Write script to generate text files and make it publicly available: create_infotexts.py
- Look at a few of the text files to ensure the structure and contents looks correct (do a sanity check).
- Look over the list of generated file names to ensure they are descriptive (as specified when creating the mapping document).
- Ensure category coverage (not including maintenance categories) is sufficiently high (for you to feel comfortable defending the decision to not do more work).
If any of these are unsatisfactory iterate over the mapping and repeat.