OOF™ Origin Open Foundation™

Independent Methodological Authority

Architecture Ecosystem: Structured Reality Standards™
Architecture Family: TREGA™ — Tax-Relevant Event Governance Architecture™
Parent Standard: Tax-Relevant Event Timing Standard (TRETS)
Module: ETCM — Event Completion Module
Operational Layer: Event Completion Governance Layer
Category: Governance & Enforcement
Subcategory: Tax-Relevant Event Governance
Type: Core Module
Governed Space: Event Completion
Origin ID: TREGA-TRETS-ETCM-003
Version: 1.0
Status: Canonical · Open Standard
Effective Date: 31 August 2026
AI-Readable: Yes
Authority: OOF®
Protection: MIP® — Methodology Intellectual Property Protection
Canonical Language: English ------------------------------

Canonical Definition

The Event Completion Module (ETCM) governs how the operational
completion of a Governed Bounded Event is determined after its
Governed Event Start has been established, by identifying,
evaluating, qualifying, and establishing the temporal condition
at which the governed event has sufficiently completed as the
event under examination.

ETCM distinguishes operational Event Completion from later
settlement, confirmation, invoicing, reconciliation, reporting,
warranty, monitoring, archival activity, accounting closure,
contractual closure, legal finality, and jurisdiction-specific
taxation points that may occur after the event has operationally
completed.

Its specific task is:

to establish a coherent, traceable, and operationally justified
Governed Event Completion without allowing technical workflow
closure, administrative processing, commercial settlement,
accounting recognition, contractual conventions, or
jurisdiction-specific tax rules to redefine when the governed
event itself operationally completes.

ETCM governs when the bounded event has completed as an
operational event.

It does not determine when that event is legally completed,
recognized, reportable, taxable, or settled under a
jurisdiction-specific framework. ------------------------------
1. Operational Role

ETSM establishes when the Governed Bounded Event begins.

ETCM determines when that same governed event has sufficiently
completed.

The transition governed by ETCM is:

Governed Event Start

↓

Governed Event Completion

The module must distinguish completion of the governed event from
activities that merely follow it.

An event may operationally complete before: payment settlement,
invoice issuance, system confirmation, reconciliation, accounting
posting, reporting, administrative closure, contractual closure,
legal acceptance, tax recognition.

Likewise, the last available timestamp in a technical workflow
may represent downstream processing rather than Event Completion.

Latest Timestamp ≠ Event Completion by Default.
------------------------------ 2. Internal Flow

The TRETS Internal Module Flow is:

Governed Bounded Event

↓

ETIM — Event Time Identification

↓

ETSM
— Event Start

↓

ETCM — Event Completion

↓

ETDM — Event Duration

↓

ETOM — Event Temporal Order

↓

Governed Temporally Situated Event

ETCM governs:

Governed Event Start

↓

Completion Candidate Identification

↓

Completion Condition Assessment

↓

Constitutive Activity
Completion Assessment

↓

Post-Event Activity Differentiation

↓

Completion Qualification

↓

Completion Ambiguity / Conflict
Handling

↓

Governed Event Completion

↓

ETDM

ETCM may consume relevant temporal signals identified by ETIM but
does not recreate the temporal signal inventory.

It establishes the legitimate operational completion of the same
event whose start was governed by ETSM.
------------------------------ 3. Operational Space

ETCM governs the operational space in which the completion of the
bounded event must be distinguished from surrounding or
subsequent temporal activity.

This space includes: completion candidates, completion signals,
completion conditions, final constitutive activity, operational
fulfillment, physical completion, digital completion,
transactional completion, service completion, transfer
completion, machine execution completion, autonomous operation
completion, distributed completion, phased completion,
conditional completion, partial completion, failed completion,
interrupted completion, post-event activity, delayed
confirmation, delayed settlement, completion ambiguity,
completion conflict, completion precision, completion
traceability.

The continued existence of related processes after operational
completion does not automatically extend the Event Completion
point. ------------------------------ 4. Operational Scope

ETCM governs:

1. identification of candidate Event Completion signals; 2.
assessment of candidate completion conditions; 3. determination
of final constitutive event activity; 4. distinction between
Event Completion and post-event activity; 5. assessment of
physical, digital, transactional, service, distributed,
machine-generated, and autonomous completion; 6. treatment of
partial completion; 7. treatment of interrupted or failed event
execution; 8. treatment of conditional completion; 9. treatment
of phased or distributed completion; 10. detection of completion
ambiguity; 11. detection of conflicting completion
representations; 12. establishment of supported completion
precision; 13. preservation of completion uncertainty; 14.
maintenance of traceability to relevant temporal signals; 15.
production of Governed Event Completion for ETDM.

ETCM does not calculate Event Duration, determine final Temporal
Order, establish Event Location, determine legal taxability, or
establish a Legal Tax Point. ------------------------------ 5.
Event Completion Candidate Identification

ETCM identifies temporal signals or conditions that could
plausibly establish Event Completion.

Potential candidates may include: final material operational
action, completion of physical transformation, completion of
transfer, final delivery, service fulfillment, digital execution
completion, final constitutive machine action, autonomous
objective execution completion, completion of required event
components, final governed state transition, operational release
of the completed result.

A candidate is not automatically authoritative.

Completion Candidate ≠ Governed Event Completion.
------------------------------ 6. Constitutive Event Completion

A legitimate Event Completion should represent the point or
condition at which the materially constitutive activity belonging
to the governed event has sufficiently concluded.

ETCM therefore asks:

When did the governed event finish occurring as the event under
examination?

This differs from asking:

When did all activity associated with the event stop?

Supporting, administrative, technical, financial, monitoring, or
reporting processes may continue after the event itself has
completed.

End of Constitutive Activity ≠ End of All Related Activity.
------------------------------ 7. Post-Event Activity
Differentiation

Events commonly generate activity after operational completion.

Examples include: confirmation messages, invoice generation,
payment settlement, reconciliation, bookkeeping, reporting,
quality review, monitoring, warranty processing, customer
feedback, data synchronization, audit logging, archival activity.

Such activities may remain materially related to the event while
occurring outside its operational completion.

ETCM must prevent downstream activity from silently extending the
governed event.

Post-Event Relevance ≠ Event Continuation.
------------------------------ 8. Completion vs. Confirmation

A system may confirm an event after the event has already
operationally completed.

Examples include: delivery confirmation after physical delivery,
transaction confirmation after execution, machine completion
signal after physical operation, cloud-service acknowledgement
after processing, settlement confirmation after transfer
execution.

Confirmation can provide evidence of completion without
necessarily constituting completion itself.

Completion Confirmation ≠ Event Completion by Default.
------------------------------ 9. Completion vs. Settlement

Financial and commercial settlement frequently occurs after the
underlying operational event.

A service may be delivered today and paid later.

Goods may be transferred before final settlement.

A digital transaction may execute before financial
reconciliation.

ETCM preserves these distinctions.

Settlement Time ≠ Event Completion by Default.

Settlement may constitute Event Completion only where settlement
itself belongs to the governed event structure established by
TREBS. ------------------------------ 10. Completion vs.
Administrative Closure

Administrative systems often maintain workflow states such as:
completed, closed, archived, reconciled, posted, approved,
finalized.

These labels do not automatically define operational Event
Completion.

A workflow may remain technically open after the event has
completed, or may be administratively closed before all
constitutive activity has finished.

Workflow Closure ≠ Event Completion by Default.
------------------------------ 11. Physical Event Completion

Physical events may complete when the material physical activity
constituting the event has concluded.

Examples include: completion of manufacturing transformation,
physical delivery, unloading completion, construction-stage
completion, transfer of a physical object, completion of machine
operation.

Later inspection, documentation, invoicing, or payment does not
automatically extend Event Completion.

Physical Process End ≠ Administrative Process End.
------------------------------ 12. Digital Event Completion

Digital events may complete through conditions such as:
processing completion, digital delivery, successful execution,
completed data transfer, completed deployment, access provision,
final governed state transition.

Digital systems frequently generate additional logs and
synchronization events afterward.

ETCM must distinguish these downstream technical traces from the
completion of the governed digital event.

Last System Timestamp ≠ Digital Event Completion by Default.
------------------------------ 13. Transactional Event Completion

Transactional processes may contain multiple possible completion
points.

For example:

Execution

↓

Confirmation

↓

Clearing

↓

Settlement

↓

Reconciliation

↓

Accounting Posting

ETCM does not impose a universal completion point.

It determines completion according to the Governed Bounded Event.

If the event represents execution, later settlement may remain
downstream.

If the governed event legitimately includes settlement,
completion may occur later.

Transaction Completion Depends on Governed Event Structure — Not
System Convention Alone. ------------------------------ 14.
Service Event Completion

Service events may complete: at delivery, at fulfillment of a
defined operational objective, after a period of continuous
performance, after completion of required service components,
upon legitimate operational termination.

A contract end date or billing date does not automatically
determine service completion.

For continuing services, ETCM must avoid manufacturing a
completion point where the governed event remains operationally
active.

Billing Boundary ≠ Service Completion by Default.
------------------------------ 15. Machine and Autonomous Event
Completion

Autonomous and machine-mediated events may produce large numbers
of internal operations before the governed event completes.

A machine may: execute, verify, adjust, communicate, self-check,
release resources, generate logs.

An autonomous agent may continue monitoring or reporting after
its primary governed operation has completed.

ETCM determines which operational condition represents completion
of the governed event rather than simply selecting the final
machine-generated timestamp.

Last Machine Action ≠ Event Completion by Default.

Autonomous Reporting ≠ Autonomous Event Continuation by Default.
------------------------------ 16. Distributed Event Completion

Distributed events may complete across multiple systems,
participants, machines, or locations.

Different components may finish at different times.

ETCM must determine whether: one component establishes
completion, all required components must complete, a defined
completion threshold must be satisfied, a bounded completion
interval is required, completion remains unresolved.

The methodology must reflect the governed event structure rather
than impose artificial simultaneity.

Distributed Completion ≠ Single-System Closure.
------------------------------ 17. Phased Event Completion

Some events complete through multiple operational phases.

Where the event remains one coherent Governed Bounded Event,
completion occurs only when the required constitutive phases have
sufficiently concluded.

However, ETCM must not absorb Event Boundary governance by
deciding that phases are actually separate events.

If evidence indicates a potential boundary problem, the issue
should be routed to appropriate boundary governance rather than
silently resolved inside ETCM.

Event Phase ≠ Separate Event by Default.
------------------------------ 18. Partial Completion

An event may begin and progress without reaching complete
fulfillment.

Examples include: partial delivery, partially completed
manufacturing, interrupted data transfer, partially executed
service, incomplete autonomous operation.

ETCM must distinguish partial progress from legitimate Event
Completion.

Possible representations may include:

Completion Pending

Partial Completion

Completion Qualified

Completion Failed

Completion Unresolved

Partial Performance ≠ Full Event Completion.
------------------------------ 19. Failed or Interrupted Events

An event that does not reach its intended operational outcome may
still constitute a governed event.

Failure does not automatically erase the event.

ETCM must determine whether: the event completed unsuccessfully,
the event terminated before completion, the event remains
suspended, the event was aborted, the completion state is
unresolved.

The module must not equate successful outcome with event
existence.

Event Failure ≠ Event Non-Existence.

Likewise:

Termination ≠ Successful Completion.
------------------------------ 20. Conditional Completion

Some events complete only when defined operational conditions are
satisfied.

For example: required delivery elements are fulfilled, required
data reaches the destination, specified transformation finishes,
required machine state is achieved, required service result is
delivered.

A timestamp may record when the condition was detected, but the
underlying condition governs operational completion.

Completion Timestamp ≠ Completion Condition by Default.
------------------------------ 21. Completion Ambiguity

Completion ambiguity exists when more than one plausible
completion representation remains and available information does
not sufficiently establish which one represents operational
completion.

Possible causes include: asynchronous systems, incomplete logs,
delayed observations, unclear completion criteria, conflicting
operational records, distributed execution, uncertain final
activity.

ETCM must preserve ambiguity rather than fabricate certainty.

Required Completion Field ≠ Completion Certainty.
------------------------------ 22. Completion Conflict

Completion conflict exists when materially relevant information
supports incompatible completion determinations.

Examples include: machine logs show completion before ERP
closure; physical delivery records conflict with platform
records; autonomous-system logs disagree across nodes; service
records show performance continuing after administrative closure.

ETCM must identify and preserve such conflict until sufficient
governance can resolve it.

Preferred System Timestamp ≠ Authoritative Event Completion by
Default. ------------------------------ 23. Event Completion
Precision

Governed Event Completion may be represented as: exact timestamp,
second, minute, hour, date, bounded interval, approximate period,
condition-relative completion.

The selected precision must not exceed the temporal support
available.

Recorded Precision ≠ Evidential Precision.

Where only a bounded interval can legitimately be established,
ETCM should preserve the interval. ------------------------------
24. Event Completion States

ETCM may represent Event Completion through states such as:

Completion Candidate A signal or condition may represent
operational completion.

Completion Qualified The candidate is sufficiently supported.

Completion Established Operational completion is sufficiently
established.

Completion Approximate Completion is established without exact
temporal precision.

Partial Completion Only part of the required event structure has
completed.

Completion Pending The governed event remains active.

Completion Interrupted Execution has stopped without normal
completion.

Completion Failed The event reached a governed unsuccessful
termination condition.

Completion Ambiguous Multiple plausible completion
representations remain.

Completion Conflicted Materially incompatible completion evidence
exists.

Completion Insufficient Available information cannot support
reliable determination.

Completion Unresolved Further governance is required.

Completion Established ≠ Legal Completion Established.
------------------------------ 25. Governance Requirements

A conforming ETCM implementation should:

1. consume the Governed Event Start from ETSM; 2. maintain
reference to relevant ETIM temporal signals; 3. identify
plausible Event Completion candidates; 4. assess candidates
against the Governed Bounded Event; 5. identify final
constitutive event activity or completion condition; 6.
distinguish Event Completion from post-event activity; 7.
distinguish completion from confirmation; 8. distinguish
completion from settlement; 9. distinguish completion from
administrative closure; 10. support physical, digital,
transactional, service, distributed, machine-generated, and
autonomous events; 11. support partial, failed, interrupted,
conditional, and approximate completion; 12. preserve ambiguity
and conflict; 13. avoid artificial temporal precision; 14.
maintain completion traceability; 15. avoid jurisdiction-specific
taxation assumptions; 16. produce a Governed Event Completion
suitable for ETDM.

------------------------------ 26. Governance Logic

The minimum ETCM governance logic is:

IF one or more temporal signals plausibly
represent completion,

THEN they must be evaluated as Completion Candidates.

IF materially constitutive event activity
remains incomplete,

THEN normal Event Completion must not be established.

IF later activity is merely administrative, financial, technical,
reporting, monitoring, or archival,

THEN that activity must not automatically extend Event
Completion.

IF confirmation occurs after operational
completion,

THEN confirmation may support completion without redefining it.

IF settlement occurs after operational
completion,

THEN settlement must remain distinct unless settlement belongs to
the Governed Bounded Event itself.

IF an event terminates unsuccessfully,

THEN its termination state must be represented without treating
the event as nonexistent.

IF completion is distributed,

THEN the completion representation must reflect the required
distributed event structure.

IF multiple completion candidates
materially conflict,

THEN the conflict must remain explicit.

IF exact completion cannot be legitimately
established,

THEN supported approximation or interval representation should be
used.

IF jurisdiction-specific law assigns
another legal point,

THEN that determination must remain outside ETCM.
------------------------------ 27. Minimum Implementation
Framework

A minimum ETCM implementation should support:

1. Governed Event Reference Reference to the Governed Bounded
Event.

2. Governed Event Start Reference Reference to ETSM output.

3. Temporal Signal Reference Reference to relevant ETIM signals.

4. Completion Candidate Identifier Unique reference for each
candidate completion condition.

5. Completion Candidate Type Physical, digital, transactional,
service, machine, autonomous, distributed, conditional, or other.

6. Completion Condition The operational condition potentially
establishing completion.

7. Constitutive Completion Assessment Whether required event
activity has sufficiently concluded.

8. Post-Event Activity Indicator Whether later related activity
remains outside Event Completion.

9. Completion Type Normal, partial, interrupted, failed,
conditional, approximate, or unresolved.

10. Completion Precision Supported temporal precision.

11. Completion Traceability Reference Links to relevant temporal
and operational records.

12. Ambiguity / Conflict State Representation of unresolved
completion issues.

13. Completion Governance State Candidate, qualified,
established, approximate, partial, pending, interrupted, failed,
ambiguous, conflicted, insufficient, or unresolved.

14. Governed Event Completion The established operational
completion representation.

15. Handoff State Readiness for ETDM.
------------------------------ 28. Governance Outputs

ETCM may produce: Governed Event Completion Event Completion
Candidate Set Completion Condition Record Constitutive Completion
Assessment Post-Event Activity Record Completion Qualification
Record Partial Completion Indicator Completion Pending Indicator
Interrupted Completion Record Failed Completion Record Completion
Precision Record Completion Ambiguity Indicator Completion
Conflict Indicator Completion Insufficiency Indicator Distributed
Completion Representation Machine / Autonomous Completion
Representation Event Completion Traceability Record Event
Duration Governance Readiness State

The principal output is:

Governed Event Completion

This output proceeds to:

ETDM — Event Duration Module ------------------------------ 29.
Critical Distinctions

Completion Candidate ≠ Governed Event
Completion

Latest Timestamp ≠ Event Completion by
Default

End of Constitutive Activity ≠ End of All
Related Activity

Post-Event Relevance ≠ Event Continuation

Completion Confirmation ≠ Event Completion
by Default

Settlement Time ≠ Event Completion by
Default

Workflow Closure ≠ Event Completion by
Default

Physical Process End ≠ Administrative
Process End

Last System Timestamp ≠ Digital Event
Completion by Default

Billing Boundary ≠ Service Completion by
Default

Last Machine Action ≠ Event Completion by
Default

Autonomous Reporting ≠ Autonomous Event
Continuation by Default

Distributed Completion ≠ Single-System
Closure

Event Phase ≠ Separate Event by Default

Partial Performance ≠ Full Event
Completion

Event Failure ≠ Event Non-Existence

Termination ≠ Successful Completion

Completion Timestamp ≠ Completion
Condition by Default

Recorded Precision ≠ Evidential Precision

Event Completion ≠ Event Duration

Event Completion ≠ Final Temporal Order

Event Completion ≠ Accounting Closure

Event Completion ≠ Contractual Closure

Operational Event Completion ≠ Legal Tax
Point

Event Completion ≠ Tax Period
Determination

Event Completion ≠ Tax Liability Determination
------------------------------ 30. Enterprise Application

ETCM can support Event Completion governance across: ERP systems,
banking infrastructure, payment systems, digital marketplaces,
e-commerce platforms, logistics networks, SaaS environments,
manufacturing systems, industrial automation, robotics,
autonomous agents, IoT infrastructure, machine-to-machine
systems, distributed computing, digital-asset infrastructure,
cross-border commerce, automated accounting infrastructure, tax
technology platforms.

ETCM enables these systems to maintain a governed operational
completion representation independently of how downstream systems
subsequently interpret settlement, accounting recognition, legal
completion, reporting obligations, or taxation.
------------------------------ 31. Real-System Use Case 1 —
Marketplace Delivery, Confirmation, and Settlement Occur at
Different Times

A marketplace transaction generates the following timeline:

10:03 — Order accepted

10:08 — Payment authorized

13:42 — Seller dispatches goods

Next day 11:16 — Goods physically
delivered

11:31 — Carrier system uploads delivery confirmation

12:05 — Marketplace marks order “completed”

Following day — Merchant settlement occurs

Three days later — Accounting
reconciliation closes

Multiple systems therefore contain different plausible
“completion” timestamps.

ETCM does not automatically accept the marketplace's completed
status, carrier confirmation, payment settlement, or accounting
closure.

It evaluates the Governed Bounded Event and determines when its
constitutive operational activity actually completed.

If the bounded event concerns fulfillment and delivery, physical
delivery may establish the Governed Event Completion even though
platform confirmation, settlement, and reconciliation occur
later.

Those later activities remain traceably associated without
silently extending the event.

The resulting completion record can subsequently be consumed by
taxation systems without TREGA™ deciding which
jurisdiction-specific legal tax point applies.

The event can operationally finish before the systems surrounding
it finish processing it. ------------------------------ 32.
Real-System Use Case 2 — Autonomous Manufacturing Event Continues
After Human Systems Think It Is Finished

An autonomous manufacturing system begins material transformation
at 08:04.

Primary machining finishes at 08:47.

The production management system automatically marks the job
“complete” at 08:48.

However, the governed manufacturing operation requires an
autonomous finishing stage.

A robotic finishing unit continues processing until 08:55.

Machine verification occurs at 08:56.

Quality telemetry is uploaded until 08:59.

Administrative production records are closed at 09:12.

An accounting entry is generated later.

ETCM determines whether the 08:48 system status legitimately
represents completion of the Governed Bounded Event.

Because required constitutive manufacturing activity continues
until the finishing stage concludes, the administrative
“complete” flag cannot independently establish Event Completion.

At the same time, telemetry upload and administrative closure
after operational completion do not automatically extend the
event.

ETCM therefore establishes the supported operational completion
condition while preserving all later signals as associated
temporal information.

A system may declare an event finished before operational reality
has actually finished — or continue processing it long after
operational reality has ended. ------------------------------ 33.
Canonical Boundary

ETCM governs the identification, assessment, qualification,
establishment, precision, ambiguity, conflict, partial
completion, interruption, failure, and traceability of the
operational completion of the Governed Bounded Event after its
Governed Event Start has been established.

It does not redefine the Governed Event Start, calculate Event
Duration, determine final Event Temporal Order, redefine Event
Boundary, determine Event Location, govern Event Participation,
determine Event-to-Value Association, establish Event
Relationships, perform Event Determination, determine Legal Tax
Point, establish Tax Period, determine Tax Jurisdiction, identify
the taxpayer, determine legal taxability, calculate tax, or
establish jurisdiction-specific tax consequences.

ETCM receives:

ETSM — Governed Event Start

ETCM produces:

Governed Event Completion

The output is handed to:

ETDM — Event Duration Module

The canonical handoff is:

ETSM — Governed Event Start

↓

ETCM — Governed Event Completion

↓

ETDM — Event Duration Module ------------------------------ 34.
Canonical Closing Statement

ETCM establishes when the governed event has finished occurring
in operational reality without allowing the administrative,
financial, technical, or legal processes surrounding that event
to redefine its operational end.

ETCM determines when the event completes — not when a system
closes it, a payment settles, or a jurisdiction decides that a
legal tax point has occurred.