Supplementary material

Item creation “on the go”

• With Mix-n-match “New item”: rudimentary, no references
• Custom list of prepared QuickStatements insert blocks (example from STW Thesaurus for Economics - please don’t mess with it, this is work in progress)
• Workflow-wise, use same sequence for M-n-m input and prepared insert blocks

Recommendations for item creation

• Pay attention to Wikidata’s notability criteria (much more relaxed then Wikipedias)
• Explain your plan and ask for feedback in the Wikidata project chat
• Apply for a bot account to make mass edits (example)
• Source every statement (hints)
• Create input in QuickStatements text format
• Check with a few statements, verify result
• Run as batch, document input and batch URL

Matching from WD to the external database entries

• Normally requires an endpoint for the external source, where you can search for the labels, aliases or other data of Wikidata items
• Insert statement for external id into Wikidata can be prepared for cut&paste or even semi-automatic execution in QuickStatements
• Some hints and linked code here

Import catalog data to Mix-n-Match

Prepare data

… as tab-separated table (one line per record) with three columns

1. identitfier
2. name
3. description

Input file for the example used earlier

Pay attention to

• description column: include everything useful for intelectual identification
• order: the sequence may help structuring your workflow (e.g., most used entries first)

Load data via web interface

… at https://tools.wmflabs.org/mix-n-match/import.php

Sync existing ids from Wikidata