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Commonly used help
- Help:Sources - structuring source items and statements
- Help:Basic_membership_properties - clarifying when to use instance of (P31), subclass of (P279) or part of (P361)
- Help:Modelling/Wikipedia_and_Wikimedia_concepts - modelling guidelines for categories, lists and compound pages
Commonly accessed projects
Property Quality Notes
These are just my own thoughts on good property practices to improve data veracity:
- Properties with a conditional meaning (i.e. their meaning is instance specific) are a bad data smell which encourages lower data veracity by removing possibilities for constraint application.
- Properties with ambiguous meaning (i.e. can be interpreted multiple ways in the same instance) should probably be qualifiers or split and constrained to narrower domains. It may be obvious to a human what the meaning is, but to a machine the property should be clearly defined.
- many→1 properties (statement on many items) are preferable to 1→many (many statements on 1 item) properties to avoid bloating individual items.
- Property constraints should drive the data, not be driven by the data. In other words, constraints should be constraining to flag issues in the model instead of being made more accepting to accommodate a bad model.
Notes on Scottish Hills
The Database of British and Irish Hills (Q61667995) is a prime source of information (DoBIH Number (P6515))
- Munro (Q1320721) - Scottish hills at least 3000 feet in height regarded by the Scottish Mountaineering Club (Q4943731) as distinct and separate mountains, based on Munro's Tables: Tables giving all the Scottish mountains exceeding 3,000 feet in height (Q61666966).
- Munro Top (Q26711849) - Subsidiary summits meeting the height criterion - note that in Munro's Tables these include the Munros.
- Corbett (Q11964099) - Scottish hills with height [2500,3000) feet and a drop of at least 500 feet (152.4m) on all sides.
- Graham (Q22569524) - Scottish hills with height [2000,2500) feet and a drop of at least 150 metres on all sides.
- Donald (Q26709973) - Hills in the Scottish Lowlands at least 2000 feet high, with a drop of at least 100 feet (30.48m) on all sides. Further specification TBC.