Building & Structure
Buildings and engineered structures
Bundle → Layer → Finding → Questions Incomplete
3 bundles · 7 layers · 0 findings · 0 questions
fabric What the artifact physically is
massing
footprint, height, storeys, envelope geometry
elements
load-bearing and enclosing components
materials
what the elements are made of
performance How the artifact holds up in use
condition
dated assessments of fabric state
energy
measured or modelled energy behavior
lifecycle The artifact's history from birth to removal
provenance
construction year, builder, acceptance basis
alterations
extensions, retrofits, conversions over time
Note: Legacy card: layers named, findings and questions never written.
Classifiers Filled
- Family
- World Models
- Category
- Physical world and living systems
- Entry kind
- standalone-mm
- Navigation path
- NAV.PHY.BLT.CIV
- Domain
- PHY.BLT.CIV
- Industry
- Cross-industry
- Tags
- civilworksphy.blt.civ
- Also called
- U1
What it is Derived, awaiting review
This meta-model describes buildings and engineered structures as physical artifacts: their massing, load-bearing and enclosing elements, materials, installed technical systems, measured condition and energy behavior, and their lifecycle from acceptance into service to demolition.
Note: First sentence of the legacy card introduction.
Why it exists Filled
Buildings and engineered structures
Distinguishing features Derived, awaiting review
- It is its own model because physical fabric persists and changes on a different cadence and under different authority than the land beneath it (P2), the usable units inside it (U2), or the temporary works that create it (U6).
What robots and AI may and may not do Missing, in the backlog
Not described yet. This gap is in the card backlog.
Moral aspects Missing, in the backlog
Not described yet. This gap is in the card backlog.
Owners Filled
Steward
The owner archetype is the registered owner of each building or structure per S1, a person or organization holding title to the artifact.
Links to other meta-models Filled
references
- world.landParcelCadastre - every building stands on one or more parcels; ground tenure is resolved there
- world.premisesSpatialUnit - interior subdivision into usable units is modelled by U2, which points back at the shell defined here
- world.constructionWorks - works create and alter the fabric; the U6 acceptance record is the birth certificate of an artifact here
- world.addressLocationReferencing - buildings are located by addresses and geocodes maintained there
- world.incidentEmergency - harm events that damage fabric are recorded in X3 and reflected here as damageRecorded events
- world.ownership - the owner of record of every building or structure
requires
- vr.wm-act-019
- vr.wm-blt-002
- vr.wm-blt-007
- vr.wm-plc-006
- vr.wm-pol-014
What else AI and robots need to interact with it Incomplete
Identity and identifiers required Missing, in the backlog
Not described yet. This gap is in the card backlog.
Direct properties not applicable Not applicable
Not applicable
Institutional or informational subject: no invented physical properties.
Recognition optional Missing, in the backlog
Not described yet. This gap is in the card backlog.
Capabilities and actions required Derived, awaiting review
- structureCommissioned: the artifact passed acceptance and entered service, mirroring the acceptance record in U6
- conditionAssessed: a condition assessment was performed and a grade recorded
- alterationCompleted: an extension, retrofit or conversion changed the fabric
- systemReplaced: a technical system was renewed or substituted
- damageRecorded: fire, flood, collision or subsidence damage was observed, often linked from an X3 incident
- structureDemolished: the artifact was removed from the world; the record is retained as history
Legacy events listed as state transitions.
Hazards and failure modes optional Missing, in the backlog
Not described yet. This gap is in the card backlog.
Standards and interfaces required Derived, awaiting review
- handoverPackageContract: transfer of as-built fabric data from a U6 works record to the owner at acceptance
- conditionDisclosureContract: owner-granted access for a surveyor, insurer or prospective buyer to the condition and energy layers
- openFootprintLicense: public release of footprint, height and construction year for mapping and city modelling
- cityscapeProjection: massing envelopes and heights for city-scale visualization; omits interiors, systems and condition
- insurerRiskProjection: construction year, materials, condition grade and energy profile; omits occupant and interior detail
- maintenancePlanProjection: elements and systems with remaining life estimates; omits ownership and valuation context
Context of use required Filled
- Ownership means authority over the fabric record; all third-party access is granted by the owner through S2 grants, and every disclosure is auditable via S4.
Sources Missing, in the backlog
Not described yet. This gap is in the card backlog.
Open questions
- Superseded by a researched world model? Map this legacy card to its successor or retire it.
Machine files
Provenance
legacy MMAS card (world-models v0.2) · legacy
Built from: models/world-u1-building-and-structure/spec.yaml, models/docs/built-environment/U1-building-and-structure.md