Ontology (What are the 'things' that the system should know about? What are the defining properties or characteristics of each 'thing'?) | Epistemology (How will the system get information about these things and their attributes?) | Semiology (How will each of the things be represented in the system?) |
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Agents
| - unique identifier (identity)
- type (individual or group; if group, what type of group, e.g. organisation, company or movement; auditor)
| Agent asserts their identity | Digital signature Demonstration of control (challenge-response) |
Activities
| - 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, verify) (optional / not required in all instances)
* An audit is a special type of activity where the input is a claim and the output is an evaluation of that claim. | PDDs MRs |
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States | - unique identifier
- location
- point in time
- metrics
- type (actual [measured] or baseline [counterfactual])
| Indicators delivered by agents via PDDs and MRs |
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| Indicators | - definition
- unit of measure
- rationale
- calculation
- credibility
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| Standards | - unique identifier
- applicability - type of agent, type of activity, state
- requirements (e.g. reporting requirements, calculation requirements)
- version
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