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Criterion and metric

Created by: GerhardHNL

Impacted sections

https://spec-untp-fbb45f.opensource.unicc.org/docs/specification/DigitalProductPassport https://spec-untp-fbb45f.opensource.unicc.org/docs/specification/ConformityCredential https://spec-untp-fbb45f.opensource.unicc.org/docs/specification/DigitalFacilityRecord https://spec-untp-fbb45f.opensource.unicc.org/docs/specification/SustainabilityVocabularyCatalog

Issue Description

In short: my recommendation is to combine criterion and metric in one entity based on characteristics and name it “Metric Characteristic”. The characteristic the can be a Type and a Value (expressed in different data types, if needed). This would fit for all existing models as it is all about getting metrics values for a particular type.

In more detail: In the BSP vocabulary you will find the entities “sustainability characteristic” and “metric characteristic”. These entities are based on “characteristic” which holds attributes as 'type' and 'value' and more. The difference between “sustainability characteristic” and “metric characteristic” is that the latter one is neutral, context free. Using an entity based on “characteristic” allows us not only to specify quantitative measurements but also express qualitative aspects (e.g. a yes/no is often used in thresholds, the same for a score (high, low) in footprints, rankings. Anyway, Metric & Criterion should be a solid pair in one entity. I realize, naming relates to the definition of something. Today, you will find names as: aspect, indicator, criterion, requirement, attribute, metric, benchmark, standard, property, feature, threshold. A metric is quantifiable, usually a number or a ratio that can be objectively measured, specific as it focuses on a particular characteristic, attribute, or aspect and comparable as it allows for comparison between different data points. While many metrics involve numerical values and units of measure, some metrics are more abstract or qualitative and do not rely on standard units.

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Edited by Ashley HARWOOD