Infrastructure · Data Structures
Metric
Definition of a quantitative property and its value semantics
Definition
Mechanism
A definition of a quantitative property. It identifies the target property, the rule used to derive its values, and the value schema that makes those values interpretable. Applying the definition produces readings; observed values and their context are recorded separately rather than changing the definition.
Invariants
- Quantitative Output: `value_schema` admits only numbers or finite structures whose leaves are numbers, and declares the units, range, or dimensions needed to interpret them.
Risks
Failure modes
None stated.
Relationships
Root pattern: builds on nothing in this library.
Used by
References
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Review how a success metric changes behaviour and what valuable work it fails to count
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Reference
Data schema
{
"type": "object",
"required": [
"target_property",
"measurement_rule",
"value_schema"
],
"properties": {
"target_property": {
"type": "string",
"description": "Property or construct whose quantity the Metric defines"
},
"measurement_rule": {
"type": "string",
"description": "Rule or procedure that derives a value from the target property"
},
"value_schema": {
"type": "object",
"description": "JSON Schema for quantitative outputs, including the units, range, or dimensions needed to interpret them"
}
}
}