Simulation Purpose & Scope Standard - (SPSS)
OOF™ Origin Open Foundation™
Independent Methodological Authority
Operational Layer: Simulation Purpose & Scope Governance Layer
Category: Governance & Enforcement
Subcategory: Simulation Governance
Type: Parent Standard
Governed Space: Simulation Purpose & Scope
Version: 1.0
Status: Canonical · Open Standard
Effective Date: 16 August 2026
Compatibility: OOF® Methodology OS™ · GOA™ · ORA™ · VALIDOS® · INTEGROS® · ADIT® · AGA™ ·
AIG® · CLIA® · MGIA™ · ASGA™ · RIS™
AI-Readable: Yes
Authority: OOF®
Protection: MIP® — Methodological Intellectual Property
Canonical Language: English (UCL™)
Governed Space
Simulation Purpose & Scope
Canonical Definition
Simulation Purpose & Scope Standard (SPSS) defines the governance conditionsunder which the reason for performing a simulation, the questions the
simulation is intended to address, the portions of the governed Simulation
Object to which it applies, the conditions and contexts included within the
simulation inquiry, the material exclusions and limitations surrounding that
inquiry, and the required simulation depth and precision are formally
established before downstream simulation representation begins.
SPSS ensures that a technically successful simulation cannot silently acquire
a broader purpose, scope, applicability, or interpretive meaning than was
actually established before simulation design and execution.
Purpose
The purpose of SPSS is to transform a governed Simulation Object into agoverned simulation inquiry.
SOS establishes:
What exactly is being simulated?
SPSS establishes:
Why is it being simulated and what must the simulation actually cover?
The distinction is fundamental.
The same Simulation Object may be simulated for radically different purposes.
A spacecraft may be simulated for: thermal behavior, navigation, structural
stress, docking, autonomous control, communication loss, mission failure, or
complete mission performance.
The Simulation Object may remain the same while the required simulation scope,
depth, precision, conditions, and exclusions change substantially.
SPSS governs those differences.
Operational Role
SPSS is the second Parent Standard of SIMULOS® — Simulation GovernanceArchitecture.
It receives the governed Simulation Object produced by SOS and establishes the
simulation-specific purpose and scope required before the object can be
represented inside a simulation.
Its role is to prevent: undefined simulation purpose, purpose substitution,
scope ambiguity, hidden scope expansion, hidden scope contraction, partial
simulation represented as whole-object simulation, excluded conditions being
treated as simulated, inappropriate generalization of simulation outputs,
insufficient simulation depth, unjustified precision, and downstream
simulation design becoming detached from the question the simulation was
originally intended to answer.
Governance Flow
Governed Simulation Object → Simulation Purpose → Simulation Questions →Simulation Scope → Scope Inclusions → Scope Exclusions → Applicability Context
→ Simulation Depth → Simulation Precision → Purpose & Scope Record → Governed
Simulation Inquiry
The governed Simulation Purpose & Scope becomes the input to:
Reality Representation Governance
Simulation Purpose
Simulation Purpose defines why simulation is being performed and whatdecision, inquiry, exploration, comparison, investigation, design activity,
operational question, or knowledge requirement it is intended to support.
A Simulation Purpose may include: design exploration, performance assessment,
behavior analysis, mission planning, safety investigation, failure
exploration, scenario examination, stress assessment, training, operational
preparation, comparative analysis, system optimization, autonomous-system
testing, policy exploration, scientific inquiry, forecasting support, or
another explicitly governed simulation objective.
The purpose must be sufficiently explicit to guide downstream simulation
governance.
Purpose Must Be Object-Bound
The Simulation Purpose must remain connected to the governed SimulationObject.
A simulation purpose should therefore answer:
What are we trying to learn, examine, reproduce, compare, explore, or
understand about this Simulation Object?
A purpose that cannot be connected to the governed object is not sufficiently
established.
Primary and Secondary Purpose
A simulation may have more than one legitimate purpose.SPSS may distinguish:
Primary Simulation Purpose
from:Secondary Simulation Purposes
where necessary.Secondary purposes must not silently become equivalent to the primary purpose
if they require different representation, scenarios, depth, or precision.
Purpose Substitution
Purpose Substitution occurs when a simulation performed for one purpose islater treated as though it had been performed for another materially different
purpose.
For example:
Design Exploration
must not automatically become:Operational Safety Demonstration
and:Training Simulation
must not automatically become:Real-World Performance Evidence
without a governed basis.SPSS prohibits silent purpose substitution.
Simulation Question
A Simulation Purpose should be translated into one or more sufficiently clearSimulation Questions.
Examples may include:
How does the system behave under condition X?
What happens if component Y fails?
How does the object respond across operating range Z?
Which scenario produces the greatest system stress?
How does autonomous behavior change when communication is lost?
The Simulation Question provides a bridge between broad purpose and concrete
simulation scope.
Simulation Scope
Simulation Scope defines the governed extent of the simulation inquiry.It determines which portions, characteristics, behaviors, conditions,
interactions, operating modes, temporal periods, environments, populations,
scenarios, and relationships are intended to be examined.
Simulation Scope establishes:
what the simulation covers
and:
what it does not cover. Object Boundary ≠ Simulation Scope
SIMULOS® establishes an important distinction:
Simulation Object Boundary ≠ Simulation
Scope
SOS may define an entire aircraft as the Simulation Object.SPSS may define the simulation scope as:
Landing Behavior Under Crosswind
Conditions
The object remains the aircraft.The simulation does not automatically cover every possible aircraft behavior.
Scope Inclusion
Material inclusions should be sufficiently explicit.Depending upon the simulation, scope may include: specific components,
functions, behaviors, operating modes, mission phases, environmental
conditions, failure conditions, populations, interactions, geographic regions,
temporal periods, or consequence pathways.
Scope Exclusion
Material exclusions must remain visible.An exclusion identifies a condition, characteristic, behavior, environment,
population, operating mode, component, or interaction intentionally outside
the governed simulation inquiry.
SPSS establishes:
Excluded from Simulation Scope ≠
Demonstrated by Simulation
This distinction must remain preserved throughout downstream interpretation.No Hidden Scope Expansion Rule
A simulation must not acquire broader scope after execution merely because theresulting outputs appear useful beyond the original inquiry.
For example:
Simulated urban daytime driving
must not silently become:simulated autonomous driving under all operational conditions.
Any material expansion requires explicit reassessment of Simulation Purpose &
Scope and affected downstream SIMULOS® spaces.
No Hidden Scope Contraction Rule
Likewise, difficult, adverse, or inconvenient conditions must not be silentlyremoved from the Simulation Scope after they were established as materially
relevant.
Scope contraction must remain explicit and its effect on downstream simulation
claims must be preserved.
Scope Inflation
Scope Inflation occurs when a narrow simulation inquiry becomes represented assupporting a substantially broader conclusion.
Examples include:
Single Scenario → Complete Scenario
Coverage
One Environment → All Environments
One Operating Mode → Complete Operational
Envelope
One Population → General Population
One Mission Phase → Entire Mission
SPSS prohibits scope inflation without a governed basis.Scope Fragmentation
A complex Simulation Scope may be divided into smaller governed simulationscopes.
This may be appropriate where different: environments, operating modes,
components, scenarios, populations, or mission stages
require different simulation methods or representations.
Fragmentation must preserve the relationship between each partial scope and
the complete intended inquiry.
Partial Simulation Scope
A partial scope is legitimate.SIMULOS® does not require every simulation to cover the complete Simulation
Object or complete operational reality.
It requires partial scope to remain explicit.
Therefore:
Partial Simulation ≠ Incomplete Governance
provided the boundary of the partial inquiry is clearly established.Simulation Applicability Context
Simulation Applicability Context defines the conditions within which thesimulation is intended to have meaning.
It may include: operational environment, geographic context, user population,
mission phase, deployment condition, system state, autonomy level, interaction
pattern, resource condition, consequence context, or another relevant domain.
Applicability Context is not equivalent to later validation or operational
authorization.
It defines the context the simulation itself is intended to examine.
Simulation Purpose vs Operational Reliance
SPSS does not determine whether simulation outputs may be relied uponoperationally.
It may record an intended downstream use where that use influences the
required simulation design.
However:
Intended Use ≠ Authorized Reliance
Formal validation and reliance questions belong to VALIDOS® and otherapplicable governance layers.
Simulation Purpose vs Validation Purpose
SIMULOS® and VALIDOS® must remain separate.SPSS asks:
Why are we performing this simulation and what must it cover?
VALIDOS® VPSS asks:
Why are we validating this Validation Object and what must that validation
establish?
A simulation may later become: validation evidence, a Validation Object, part
of a Validation Method, or one input into a broader validation determination.
The purposes may interact, but they are not the same governance question.
Simulation Depth
Simulation Depth defines how deeply the governed simulation inquiry mustexamine the selected Simulation Object characteristics and conditions.
Depth may increase where the simulation purpose involves: high consequence,
high complexity, high uncertainty, autonomous behavior, significant
interaction effects, rare failure conditions, safety-critical operations,
irreversible decisions, or broad downstream dependence.
Simulation Depth should remain proportional to the purpose. Simulation Depth ≠
Validation Depth
SIMULOS® establishes:
Simulation Depth ≠ Validation Depth
Simulation Depth governs the required depth of the simulation inquiry.Validation Depth under VALIDOS® governs the strength and assurance level
required to establish a validation conclusion.
One may influence the other without becoming the same concept.
Simulation Precision
Simulation Precision defines the level of detail, granularity, resolution, orquantitative specificity required to satisfy the Simulation Purpose.
Precision may concern: temporal resolution, spatial resolution, behavioral
granularity, component detail, parameter resolution, scenario resolution,
measurement granularity, or output specificity.
Greater precision is not automatically better.
No False Precision Rule
SIMULOS® establishes:Simulation precision must not exceed what the simulation purpose, object
definition, representation basis, assumptions, inputs, and model structure can
meaningfully support.
A highly precise numerical output does not automatically imply highly precise
representation of reality.
Purpose-Depth Alignment
Simulation Depth should be sufficient for the Simulation Purpose.A mismatch may occur where:
High-Consequence Purpose → Low Simulation
Depth
or:Exploratory Purpose → Excessive Simulation
Burden
SPSS governs alignment rather than maximum complexity.Purpose-Precision Alignment
Simulation Precision should also be appropriate to purpose.A simulation intended only to identify broad directional behavior may not
require the same precision as one intended to examine a narrow engineering
tolerance.
Scope-Depth Alignment
Depth must apply to the actual Simulation Scope.A simulation cannot compensate for missing scope merely by examining the
included portion in extreme detail.
Therefore:
Deep Simulation of Narrow Scope ≠ Broad Simulation Coverage Scope-Precision
Alignment
High precision within one narrow scope does not justify claims concerning
excluded conditions.
This prevents precise outputs from creating artificial scope credibility.
Consequence Context
The consequence attached to the intended simulation use may influencerequired: depth, precision, scenario breadth, representation fidelity,
documentation, or later validation.
SPSS may therefore record a Simulation Consequence Context where materially
relevant.
It does not replace general risk governance.
Exploratory Simulation
An exploratory simulation may intentionally operate with: broader uncertainty,lower precision, incomplete knowledge, wider hypothesis space, or provisional
assumptions.
This is legitimate if the Simulation Purpose clearly identifies the
exploratory nature of the inquiry.
Exploratory results must not silently become high-assurance conclusions.
Decision-Support Simulation
Where simulation is intended to support a decision, the decision contextshould be sufficiently described to establish the required scope, depth, and
precision.
SPSS does not govern the decision itself.
It governs the simulation inquiry supporting that decision.
High-Consequence Simulation
Where simulation may materially influence: safety, critical infrastructure,autonomous operation, medical decisions, aerospace operations,
mission-critical systems, financial stability, or other high-consequence
environments,
SPSS should require correspondingly explicit purpose, scope, exclusions,
depth, and applicability.
Simulation Purpose Change
The Simulation Purpose may change during the lifecycle.A Material Purpose Change occurs where the new purpose would require
materially different: representation, assumptions, model structure, inputs,
scenarios, execution, outputs, or correlation requirements.
Material purpose change requires downstream reassessment.
Simulation Scope Change
Simulation Scope may also change.Relevant changes include:
Scope Expansion
Scope Contraction
Scope Recomposition
Scope Extension
Scope Restriction
or:Applicability Change
Material scope change must remain traceable.Purpose & Scope Change Propagation
SIMULOS® establishes:A material change to Simulation Purpose or Scope must propagate to every
downstream simulation governance space materially dependent upon that purpose
or scope.
Potentially affected spaces include: Reality Representation, Simulation
Assumptions, Model & Environment, Inputs & Data, Scenario Design, Simulation
Execution, Simulation Output Governance, Simulation-to-Reality Correlation,
Simulation Evidence & Reliance Boundary, and Simulation Lifecycle &
Resimulation.
No Retrospective Purpose Redefinition Rule
A Simulation Purpose must not be materially redefined after results becomeknown merely to make those results appear more successful or relevant.
Material change must be explicitly documented and affected simulation
governance reconsidered.
No Retrospective Scope Redefinition Rule
Likewise, the scope must not be silently changed after execution so thatfailed or unmodeled conditions disappear from the represented inquiry.
Purpose & Scope Traceability
The simulation lifecycle should remain traceable to:Simulation Object → Simulation Purpose → Simulation Questions → Simulation
Scope → Inclusions → Exclusions → Applicability → Depth → Precision
This relationship allows later reviewers to determine what the simulation was
actually designed to establish.
Simulation Purpose & Scope Record
SPSS should produce a persistent Simulation Purpose & Scope Record sufficientto reconstruct: why the simulation was performed, which questions it
addressed, what was included, what was excluded, where the simulation applied,
how deeply it was intended to examine the object, and what level of precision
was required.
Governance Boundary
SPSS begins when:a governed Simulation Object exists and requires a defined reason, inquiry
boundary, and simulation extent.
SPSS ends when:
Simulation Purpose, Simulation Questions, Scope, material inclusions and
exclusions, Applicability Context, Simulation Depth, and required Simulation
Precision are sufficiently established to support governed Reality
Representation.
Governance Scope
SPSS governs only the purpose and scope of simulation.It does not govern: Simulation Object identity, Simulation Object boundary
itself, reality-representation fidelity, simulation assumptions, model
construction, simulation environment construction, input-data suitability,
scenario design, execution, outputs, simulation-to-reality correlation, formal
validation, Validation State, operational reliance authorization, general
integrity, risk governance, accountability, or audit execution.
These responsibilities belong to other SIMULOS® Parent Standards or adjacent
OOF® architectures.
Minimum Governance Requirements
A conforming application of SPSS should establish:1. an explicit Simulation Purpose, 2. a clear relationship between purpose and
the governed Simulation Object, 3. one or more identifiable Simulation
Questions, 4. a bounded Simulation Scope, 5. explicit material scope
inclusions, 6. explicit material scope exclusions, 7. a defined Simulation
Applicability Context, 8. sufficient Simulation Depth relative to purpose, 9.
appropriate Simulation Precision, 10. visibility of intended downstream use
where materially relevant, 11. prevention of purpose substitution, 12.
prevention of scope inflation, 13. prevention of retrospective purpose or
scope redefinition, 14. traceability of material purpose and scope changes,
15. and a persistent Simulation Purpose & Scope Record.
Relationship to Other OOF® Architectures
Simulation Purpose & Scope Standard interoperates with: GOA™ ORA™ OBIDENITY®VALIDOS® INTEGROS® ADIT® AGA™ AIG® CLIA® MGIA™ ASGA™ RIS™
by establishing the simulation-specific inquiry boundary that downstream
simulation governance consumes.
GOA™ may govern broader governance authority and institutional scope.
ORA™ may provide the operational-reality context that the simulation intends
to examine or represent.
VALIDOS® may establish a separate Validation Purpose & Scope where simulation
outputs, models, or simulation-derived claims enter formal validation.
RIS™ may influence required Simulation Depth, consequence context, and later
scenario intensity.
AGA™ may establish responsibility for simulation-purpose decisions and scope
authorization.
ADIT® may preserve evidence showing which Simulation Purpose & Scope governed
a simulation at a particular point in time.
INTEGROS® may govern integrity of the underlying scope and purpose records.
Specialized AI, cognition, memory, and autonomous-system architectures may
contribute domain conditions that influence what the simulation must examine
without replacing SPSS.
SPSS governs specifically:
why the simulation exists and what the simulation inquiry is permitted to
claim it covers.
Architectural Position
Simulation Purpose & Scope Standard (SPSS) is the second Parent Standard ofSIMULOS® — Simulation Governance Architecture.
The architecture begins:
Simulation Object
↓Simulation Purpose & Scope
SOS establishes:What exactly is being simulated?
SPSS establishes:
Why is it being simulated, what must the simulation cover, what is excluded,
and how deeply must the inquiry operate?
Once those conditions are sufficiently established, the next architectural
question becomes:
Which aspects of reality must now be represented inside the simulation, and at
what level of abstraction and fidelity?
This transition leads directly into: