...
- unique identifier
- location
- start time
- end time (possibly)
- agent
- inputs (e.g. materials and energy; consumables and non-consumables)
- outputs
- processes
- objective (create, reduce, destroy, avoid) (optional / not required in all instances)
An event class?
A state
- unique identifier
- location
- point in time
- metrics
- type (actual [measured] or baseline [counterfactual])
...
- unique identifier
- unit of measure
- magnitude
- state "before"
- state "after"
- cause (activity)
- standard followed (ID)scope
- effect (e.g. primary or secondary)
An audit (the process / action of verifying an impact claim)
...