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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 An agent asserts their identity

Digital signature

Demonstration of control (challenge-response)

Activities

• location
• start time
• end time (possibly)
• agent
• input(s) (e.g. materials and energy; consumables and non-consumables)
• output(s)
• process(es)

• 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.

Ex ante: An agent asserts their intentions to act in a Projet Design Document (PDD) 

Ex post: An agent describe their actions in a Projet Design Document (PDD) 

The activity and its results and impacts are documented  by the agent at intervals in a monitoring report (MR)

PDDs

MRs

• unique identifier

States

• location
• point in time
• metrics
• type (actual [measured] or baseline [counterfactual])

Indicators delivered by agents via PDDs and MRs

• unique identifier

• name
• definition
• unit of measure
• rationale
• calculation
• credibility

• unique identifier

• name
• author(s)
• applicability - type of agent, type of activity, state
• requirements (e.g. reporting requirements, calculation requirements)
• version

• unique identifier