Property talk:P1880

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measurement scale
scale by which a phenomenon is measured

Description	for a quantity, unit or concept that specific instruments have been developed to measure
Represents	measurement scale (Q1370617)
Data type	Item
Example	earthquake (Q7944) → Richter scale (Q38768) psychopathy (Q366886) → Hare Psychopathy Checklist (Q1033930) Levenson Self-Report Psychopathy Scale (Q6535196)
Tracking: usage	Category:Pages using Wikidata property P1880 (Q117011580)
See also	measures (P2575), measured physical quantity (P111), recommended unit of measurement (P8111), type of unit for this property (P2876)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P1880 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 237 Main statement 204 86.1% of uses Qualifier 33 13.9% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Value type “measurement scale (Q1370617)”: This property should use items as value that contain property “instance of (P31), subclass of (P279)”. On these, the value for instance of (P31), subclass of (P279) should be an item that uses subclass of (P279) with value measurement scale (Q1370617) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1880#Value type Q1370617, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1880#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1880#Scope, SPARQL

This property is being used by: ca:Plantilla:Infotaula malaltia, ca:Plantilla:Infotaula malaltia/vell it:Template:Pornostar eu:Txantiloi:Magnitude infotaula Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Inverse of measured physical quantity (P111)?

Should this property be used for statements like quantity > measured in > unit? For instance: electric current (Q29996)measurement scale (P1880)ampere (Q25272). I've seen some use of it and added some myself, but wanted to check whether this is actually appropriate. Toni 001 (talk) 12:18, 7 December 2019 (UTC)

After some consideration - and trying to find labels and descriptions that fit for both "scales" and "units" - I now think that it would be best to have a separate property to link quantities to units. Proposed here. Toni 001 (talk) 14:56, 22 December 2019 (UTC)

For units of measurement, use the following property: recommended unit of measurement (P8111) Toni 001 (talk) 11:24, 10 April 2020 (UTC)

I don't see problems in such using. And P8111 seems redundant now. --Infovarius (talk) 03:22, 12 April 2020 (UTC)

The whole point of proposing a different property for connecting quantities to units (now P8111) was that a measurement scale and a measurement unit are not the same kind of thing (but this difference is sometimes neglected or ignored). With P8111 we now have a well-scoped property. An example: Thermodynamic temperature is measured in kelvin (a unit) and measured by the ITS-90 (a temperature scale). Toni 001 (talk) 10:54, 12 April 2020 (UTC)