| acceptance_criteria |
Criteria that define when the deliverable is accepted. |
| actual_finish_at |
Actual finish timestamp for the time record where known. |
| actual_start_at |
Actual start timestamp for the time record where known. |
| address_country |
Country name. |
| address_country_code |
Optional ISO 3166-1 alpha-2 or alpha-3 country code. |
| address_locality |
Locality, city, or town. |
| address_region |
Region, state, canton, or province. |
| adjacency_kind |
Adjacency semantics when this spatial requirement involves another subject. |
| affected_geometry_role |
Geometry role affected for GeometryChange records. |
| affected_requirement |
Requirement entity affected by this change. |
| affected_subject |
Optional typed reference to the changed graph entity when the subject is in the project graph. |
| affected_subject_id |
Identifier of the changed subject (entity id, document id, or external key). |
| affected_subject_path |
Optional JSON-pointer-style path for nested targets (for example localized_descriptions[de], section.4.2.paragraph_1). |
| affected_subject_type |
LinkML class name of the changed subject (for example Space, SeparatorWall, Artifact). |
| applies_to_entities |
Model entities this record applies to (requirements, cost items, schedule items, etc.). |
| artifact_kind |
Kind of external artifact (text document, model, or plan). |
| artifact_storage_link |
Artifact location when the subject is an Artifact entity or embedded field diff. |
| assignee |
Responsible agent. |
| availability_notes |
Optional notes about availability, office hours, or response expectations. |
| belongs_to_company |
Optional company that the person belongs to. |
| birthday |
Date of birth. Personal data; governed by personal_data_processing_state, consent_records, and retain_until. |
| boundary_type |
Classification of boundary element (e.g., covering). |
| bounded_by |
Physical elements that bound a space. |
| bounded_space |
Space bounded by this boundary element. |
| catalog_cost_records |
Catalog cost and price records for this product (cost_record_role cost or price). |
| change_severity |
Optional severity independent of change type. |
| change_source |
URI identifying the tool or pipeline that produced this change record. |
| change_type |
Category of change detected between two revisions. |
| classification_code |
Classification code inside the scheme. |
| classification_label |
Optional human-readable classification label. |
| classification_scheme |
Name of the classification scheme (for example ifc, uniclass, omniclass, custom). |
| classification_source |
Source authority or dataset for this classification. |
| classification_uri |
Optional URI/CURIE that identifies the classification concept in an external registry. |
| classification_version |
Optional scheme/version identifier. |
| classifications |
Classification entries from IFC and other schemes. |
| clause_ref |
Clause, article, or section reference within the norm. |
| client |
Owning client organization. |
| completed_at |
Timestamp when the process instance completed or terminated, when applicable. |
| component_cost_items |
Cost records aggregated into this assembly record. |
| component_time_items |
Time records contained in this plan; set milestone_at on a record to mark it as a checkpoint. |
| connection_functional_types |
Functional connection role(s) between spaces (for example access, visual, ventilation, heating). Multiple values allowed (for example glazed door as access plus visual). |
| connection_physical_requirement_drivers |
Performance requirement drivers for this physical connection element. Multiple values are allowed because one connection may need to satisfy several requirements. |
| connection_physical_type |
IFC-derived physical connector form (for example door, window, duct, pipe, cable). Semantic role is expressed via connection_functional_types. |
| connection_virtual_requirement_drivers |
Main requirement drivers for this virtual connection. |
| connection_virtual_type |
Classification of virtual connection semantics (for example structural_joint, adjacency, access). |
| connects_physical_elements |
Physical elements connected by this virtual connection (for example wall-wall, wall-slab). |
| connects_spaces |
Spaces connected by this virtual connection. |
| consent_notes |
Optional notes about how or where consent was captured. |
| consent_records |
Audit trail of lawful basis and consent for processing personal data. When lawful_basis is consent and state is active, at least one non-withdrawn record should be present. |
| contact_channel_type |
Communication channel type such as email, phone, website, linkedin, whatsapp, signal, slack, teams, or telegram. |
| contact_points |
Structured communication channels and profiles associated with this agent. |
| contact_uri |
URI for the contact endpoint or profile where applicable. |
| contact_value |
Human-readable contact value such as an email address, phone number, handle, or username. |
| contained_entities |
Generic containment for associated entities. |
| content_kind |
Entity type discriminator for adapter projection and querying. Must be a ContentKind value. |
| context_type |
Classification of context entity (perimeter, legal_site, building, civil_structure, level, zone). |
| contract_parties |
Agents party to the contract (for example client, contractor, consultant). |
| contract_reference |
Human-readable contract number or external reference. |
| contract_status |
Contract status expressed as a URI/CURIE (for example draft, signed, active, terminated, superseded). |
| contract_type |
Contract type expressed as a URI/CURIE from a controlled vocabulary (for example design, construction, supply). |
| cost_category |
Cost category label kept intentionally open pending classification-backed modeling. |
| cost_quantity_type |
Quantity type used as basis for this cost calculation. |
| cost_quantity_unit |
Unit of the cost quantity value. |
| cost_quantity_value |
Quantity magnitude used as basis for this cost calculation. |
| cost_record_role |
Role of this cost record (catalog cost, catalog price, project estimate, or actual). |
| cost_records |
Cost records associated with this entity. |
| created_at |
Creation timestamp for this entity record. |
| currency |
ISO 4217 currency code (for example EUR, USD). |
| data_categories |
Personal data categories covered by this consent or processing record. |
| data_controller |
Organization accountable as data controller for this person record. |
| decided_at |
Timestamp when the decision was made. |
| decided_by |
Agent responsible for the decision. |
| decision_status |
Decision status expressed as a URI/CURIE (for example proposed, accepted, rejected, superseded). |
| decision_type |
Decision type expressed as a URI/CURIE from a controlled vocabulary. |
| deliverable_code |
External or internal deliverable identifier within a project. |
| deliverable_format |
Required deliverable format or encoding (for example IFC4, PDF, COBie). |
| deliverable_kind |
Deliverable type label (for example coordination model, O&M manual, as-built record). |
| dependency_type |
FS |
| description |
Default description text. |
| detected_at |
Timestamp when this change was detected. |
| due_at |
Due timestamp for task completion. |
| earliest_start_at |
Earliest permitted start when a schedule requirement defines a start window. |
| effective_from |
Start of contractual validity. |
| effective_until |
End of contractual validity when applicable. |
| elevation |
Storey elevation relative to project datum (metres). |
| elevation_unit |
Unit for elevation (default m). |
| equipment_type |
Classification of equipment (for example HVAC, electrical, plumbing). |
| external_instance_uri |
URI of the corresponding process instance in an external workflow engine when applicable. |
| frame_material |
Material of the frame or casing surrounding the opening. Applies to opening-type connectors (door, window). |
| from_revision |
Source revision number for this change. |
| from_value |
Prior value serialized as text. Absent or null for new subjects or fields. |
| geometry_format |
Optional serialization/encoding format (for example ifc, gltf, wkt, geojson), independent of representation kind. |
| geometry_reference |
URI/path/hash/pointer to geometry payload. |
| geometry_representation |
Representation kind/dimension (for example body_3d, footprint_2d, point), independent of file format. |
| geometry_representations |
Geometry references associated with the entity. A single element may link to multiple geometry representations to serve different intents (authoring, coordination, analysis, visualization) without duplicating the element itself. |
| granted_at |
Timestamp when consent was given. Required when lawful_basis is consent. |
| group_members |
Zone members; may include spaces, separations, systems, etc. |
| id |
Unique local identifier. |
| ifc_attribute_name |
IFC attribute name when property_path_kind is ifc_attribute (for example Name, GlobalId). |
| ifc_global_id |
IFC GlobalId of the mapped entity. |
| infill_material |
Material of the opening infill within the frame (for example glazing for windows, door leaf or panel for doors). Applies to opening-type connectors (door, window). |
| intent_verdict |
Intent stability verdict from an automated judge (for example iterthink STABLE/NEW). |
| is_above_ground |
Whether the space is above ground level. When unset, consumers may derive from parent_level elevation relative to project datum. |
| is_cooled |
Whether the space is designed to receive cooling (air conditioning). |
| is_heated |
Whether the space is designed to receive heating. |
| is_preferred |
Indicates whether this is the preferred contact point. |
| jurisdiction |
Jurisdiction or authority scope for the regulatory requirement. |
| lag_days |
|
| language_tag |
IETF BCP 47 language tag (for example en, de, pt-BR). |
| lawful_basis |
Lawful basis for processing the scoped personal data categories. |
| lifecycle_status |
Whether the person is active, retired, or deceased. Orthogonal to privacy processing state and workflow QA status. |
| localized_descriptions |
Localized variants of description. |
| localized_names |
Localized variants of name. |
| mapping_version |
Mapping specification version used to derive the normalized property. |
| match_status |
Whether the subject met the requirement at the target revision. |
| material_category |
Material category label kept intentionally open pending classification-backed modeling. |
| material_specification |
Material grade, specification, or product description. |
| materials |
Material definitions associated with this entity. |
| meaning_uri |
Optional semantic URI for linking the entity instance to an external ontology concept. |
| media_format |
Encoding or format label (for example IFC4, PDF, DWG). |
| message_body |
Human-readable message content. |
| message_subject |
Optional subject or headline for the message. |
| message_type |
Message type expressed as a URI/CURIE from a controlled vocabulary. |
| metadata |
Generic metadata container for IFC attributes/properties and project-specific extensions. |
| metadata_key |
Metadata key, for example IfcWall.FireRating or Pset_WallCommon.Reference. |
| metadata_value |
Metadata value serialized as text. |
| metric_code |
skos:notation of the concept in the matching abstract metric or ratio scheme. |
| metric_scheme |
Vocabulary scheme identifier for the measured concept: AbstractBuildingMetric or AbstractBuildingRatio. |
| metric_uri |
Concept URI from building-metrics.skos.ttl or building-ratios.skos.ttl. |
| milestone_at |
Target timestamp for a zero-duration milestone checkpoint. |
| min_area |
Minimum required area in square metres. |
| min_clear_distance |
Minimum clear distance in metres when adjacency_kind is min_clear_distance. |
| min_height |
Minimum required height or clear height in metres. |
| modified_at |
Last modification timestamp for this entity record. |
| name |
Default display name. |
| norm_uri |
URI identifying the norm, standard, or building code. |
| operated_by |
Organization accountable for this software agent. |
| parent_building |
Parent building context reference. |
| parent_legal_site |
Parent legal site context reference. |
| parent_level |
Parent level/storey context reference. |
| parent_perimeter |
Parent perimeter context reference. |
| parent_process |
Optional BPMN process instance that owns or spawned this task. |
| parent_program |
Parent program reference. |
| parent_project |
Parent project reference. |
| parent_space |
Parent space where the equipment is located. |
| parent_system |
Parent systems that the equipment belongs to. |
| parent_zone |
Parent zone context reference. |
| performance_properties |
Normalized, strongly typed domain properties (fire/acoustic/thermal/structural/ security/material) extracted from raw IFC PropertySet values. |
| person_relationships |
Typed social, professional, commercial, and interest relationships to other agents or topic concepts. May be populated manually or extracted from CRM stories via LLM; use relationship_source for provenance (for example a Message id). May constitute personal data; governed by personal_data_processing_state, consent_records, retain_until, and related privacy slots on this Person. |
| personal_data_processing_state |
Privacy handling state for personal data on this person, orthogonal to workflow QA status. |
| planned_finish_at |
Planned finish timestamp for the time record. |
| planned_start_at |
Planned start timestamp for the time record. |
| post_office_box_number |
Post office box number where applicable. |
| postal_addresses |
Structured postal or physical addresses associated with this agent. |
| postal_code |
Postal or ZIP code. |
| priced_for_customer |
Optional customer for a customer-specific catalog price when cost_record_role is price. |
| privacy_policy_uri |
URI of the current or default privacy policy or notice applicable to this person record. |
| process_definition_uri |
URI identifying the BPMN process definition (for example engine definition key or BPMN artifact URI). |
| process_participants |
Agents participating in this BPMN process instance (for example assignees mapped from lane roles). |
| process_status |
Process instance status expressed as a URI/CURIE (for example active, suspended, completed, terminated). |
| processing_purpose |
Human-readable purpose for which the personal data categories are processed. |
| processing_purposes |
High-level purposes for processing personal data (for example project coordination, contract administration). |
| product_code |
External or internal product catalog identifier. |
| program_code |
External or internal program identifier. |
| programme_ref |
URI or identifier for a programme or brief document. |
| project_code |
External or internal project identifier. |
| property_key |
Canonical key inside the domain; constrained via subclass slot_usage to a domain-specific enum. |
| property_path |
Canonical path to the changed field. Examples: Pset_WallCommon.FireRating, IfcWall.Name, description, section.4.2.requirement_3, body:char_offset:1204-1389. |
| property_path_kind |
Classification of the property path for downstream diff interpretation. |
| property_unit |
Normalized unit where applicable (for example min, dB, W/m2K). |
| property_unit_uri |
Optional URI that identifies the normalized property unit in an external vocabulary such as QUDT. |
| property_value_boolean |
Boolean value when property_value_type is boolean. |
| property_value_number |
Numeric value when property_value_type is number. |
| property_value_string |
String value when property_value_type is string. |
| property_value_type |
Value type discriminator for normalized storage (for example string, number, boolean). |
| quantity_type |
Controlled quantity type. |
| quantity_unit |
Unit of the quantity value. |
| quantity_unit_uri |
Optional URI that identifies the quantity unit in an external vocabulary such as QUDT. |
| quantity_value |
Numeric quantity value. |
| quantity_values |
Quantities associated with the entity. |
| rationale |
Human-readable rationale that explains why the decision was made. |
| recipients |
Agents that received the message. |
| redacted_at |
Timestamp when identifying personal data was redacted on this record. |
| redaction_reason |
Reason for redaction (for example external model export, erasure request, retention expired). |
| related_company |
Target organization for org and commercial predicates such as works_at, worked_at, is_key_account_manager_for, client_of, or vendor_of. |
| related_decision |
Optional reference to a decision that informs or drives this task. |
| related_entity |
Entity or space subject for adjacency or distance constraints. |
| related_material |
Optional Material entity template this requirement must match or satisfy. |
| related_person |
Target person for social and professional predicates such as knows, was_colleague_of, reports_to, or has_key_account_manager. |
| related_product |
Optional catalog product this deliverable implements or this cost record is priced from. |
| related_requirement |
Requirement entity for match_change records. |
| related_time_record |
Optional TimeRecord plan item this schedule requirement aligns with or must satisfy. |
| related_topic |
Topic of interest. classification_scheme must be AbstractTopicClassification; classification_uri references the SKOS topic concept. |
| relationship_notes |
Optional free-text context for this relationship record. |
| relationship_source |
Optional provenance label (for example manual, crm:manual, llm:story-msg-0042, LinkedIn). |
| relationship_type |
Relationship predicate. classification_scheme must be AbstractPersonRelationshipType; classification_code and classification_uri reference the SKOS concept. |
| requirement_property_key |
Canonical performance key for the target (for example u_value, resistance_rating). Aligns with performance property keys where applicable. |
| retain_until |
Storage-limit deadline after which personal data should be deleted or redacted. |
| revision |
Integer revision counter for change tracking. |
| sender |
Agent that sent the message. |
| sent_at |
Timestamp when the message was sent. |
| separates_levels |
Level context nodes separated by this slab separator. |
| separates_spaces |
Spaces separated by this separator element. |
| separator_requirement_drivers |
Performance requirement drivers for this separator. Multiple values are allowed because one separator may need to satisfy several requirements. |
| separator_slab_type |
Classification of slab-based separator element (for example floor/roof/base slab). |
| separator_wall_type |
Classification of wall-based separator element. |
| serves_spaces |
Spaces served by this system. |
| serves_zones |
Zone context nodes served by this system. |
| service_endpoint |
Optional URI of the running service or integration endpoint. |
| signed_artifact |
Optional signed contract artifact at storage_link. |
| signed_at |
Timestamp when the contract was signed. |
| software_version |
Optional deployed version label for the software agent. |
| source_artifact |
Optional source artifact backing this requirement. |
| source_property |
Original property name inside the source PropertySet (for example FireRating). |
| source_pset |
Original IFC PropertySet name (for example Pset_WallCommon). |
| source_value_raw |
Raw source value before normalization. |
| space_name_type |
Normalized abstract room name type (for example office, kitchen, corridor). Project-specific labels remain on name. When set, adapters may derive a BuildingSpaceActivityClassification entry in classifications[] via the room-name-to-activity mapping bridge. |
| space_type |
Classification of space (void, circulation, usable, service). |
| started_at |
Timestamp when the process instance started. |
| statement |
Free-text requirement statement from client or programme. |
| status |
Lifecycle or QA status. |
| storage_link |
URI/URL/path to the stored artifact location. |
| street_address |
Street name and house number or equivalent address line. |
| substitutes_allowed |
Whether equivalent or substitute materials are permitted. |
| successors |
Forward precedence links to successor records. Reverse lookup (find all predecessors of X) requires scanning all TimeRecord.successors — acceptable for document exchange, not for live graph queries. |
| system_discipline |
Classification of system discipline (electrical, sanitary, ventilation, heating). |
| system_type |
Classification of system role (unit, network, terminal). |
| tags |
Optional free-form labels for filtering/grouping. |
| target_item |
The successor TimeRecord. |
| target_operator |
Comparison operator for the requirement target. |
| target_unit |
Unit for numeric targets (for example W/m2K, min, dB). |
| target_unit_uri |
Optional URI identifying the target unit (for example QUDT). |
| target_value_boolean |
Boolean target value when applicable. |
| target_value_number |
Numeric target value when applicable. |
| target_value_string |
Textual target value when applicable. |
| task_notes |
Additional notes or implementation details for the task. |
| task_status |
Task status URI/CURIE aligned with action status vocabularies. |
| task_type |
Task type expressed as a URI/CURIE from a controlled vocabulary. |
| text_value |
Localized text value. |
| time_plan |
Parent time plan this record belongs to. |
| time_records |
Time records associated with this entity. |
| to_revision |
Target revision number for this change. |
| to_value |
New value serialized as text. Absent or null for deleted subjects or fields. |
| transport_medium |
Primary transport medium carried or enabled by the connector (for example human_access, air, liquid, electricity). |
| triggered_process |
BPMN process instance that this change triggered or should trigger. |
| triggered_task |
Task entity that this change triggered or should trigger. |
| unit_cost |
Unit cost for this cost item. |
| usage_context |
Optional usage context such as work, personal, support, billing, or emergency. |
| valid_from |
Optional start of the relationship period (for example employment start for worked_at). |
| valid_to |
Optional end of the relationship period (for example employment end for worked_at). |
| vendor |
Company that sells or offers this product. |
| withdrawn_at |
Timestamp when consent was withdrawn, if applicable. |
| zone_type |
Optional zone classification; intended for SpatialContext nodes where context_type is zone. |