position
Let an agent handle position as a spatial property: what reference frame and coordinates are used, how position is measured and with what accuracy, how arrangement and posture are described, and which other senses of the word belong elsewhere.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Frame Reference and coordinates.
Reference
Reference frame.
Reference
Reference.
- What reference frame or datum is the position given in? definition
- Is the question about spatial position or another sense of the word? boundary
Coordinates
Coordinate systems.
Coordinates
Coordinates.
- Which coordinate system is used, and how are values converted between systems? action
- Which entry fits a specific coordinate system? action
Measure Measuring position.
Methods
Methods.
Methods
Methods.
- How is position measured, by satellite, survey, sensor or description? measurement
- What accuracy does the method give? measurement
Record
Recording.
Record
Record.
- How should position be recorded with datum, time and uncertainty? action
- Which standard governs the record? provenance
Arrangement Posture and layout.
Posture
Posture of bodies.
Posture
Posture.
- How is the posture or orientation of an object or body described? definition
- Which entry fits orientation? action
Layout
Position in a layout.
Layout
Layout.
- How is position within a formation, layout or sequence expressed? definition
- Is the arrangement relative or absolute? boundary
Use Applications and study.
Applications
Uses.
Applications
Applications.
- How is position used in navigation, mapping, robotics and logistics? provenance
- Which entry fits navigation? action
Study
Geometry and geodesy.
Study
Study.
- How do geometry and geodesy formalise position, and which references are standard? provenance
- How is the concept taught? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- noun.attribute
- Plane
- XCT
- Domain
- XCT.QLT
- Facets: substance
- abstract
- Facets: origin
- conceptual
- Facets: agency
- inert
- Facets: mobility
- not-applicable
- Facets: scale
- not-applicable
- Facets: affordances
- observable
- Other names and narrower kinds
- cat rig, fore-and-aft rig, formation, lateen-rig, raster, rig, rigging, split, worldliness, occlusion, tilt, list
What it is Filled
The spatial property of where something is situated or the way it is arranged: its place relative to a reference frame or to other things, and the posture or configuration it holds; expressed by coordinates, bearings, distances, named places or descriptive terms, and distinct from the other senses of position such as a job or an opinion.
Why it exists Filled
Let an agent handle position as a spatial property: what reference frame and coordinates are used, how position is measured and with what accuracy, how arrangement and posture are described, and which other senses of the word belong elsewhere.
Distinguishing features Filled
- Requires a reference frame
- Can be absolute or relative
- Includes posture and arrangement, not only location
- Measured with stated accuracy
What robots and AI may and may not do Filled
Must not
- Track or disclose a person's position without consent or lawful basis.
- Report positions without stating datum, frame or uncertainty when it matters.
- Move machines to a position without confirming it is clear of people.
Only with a human decision
- Sharing a person's live location with others.
May
- Describe and compute positions using a stated reference frame and units.
- Report the position of objects or devices it is authorized to track.
Moral aspects Filled
- Knowing where someone is gives power over them.
- Position errors in navigation can cause collisions and missed rescues.
Who is affected
- People being located
- Users of navigation
Owners Filled
Steward
Nobody: a property; the person or operator answers for each tracked object.
Links to other meta-models Filled
parent
- oewn-00032220-n - registry parent class
related
- spatial property - a property of things in space
- coordinate system - to be expressed
- positioning system - satellite, survey or sensor
- location - a place rather than a property
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.position-2
- Open English WordNet: oewn-05081943-n
Direct properties not applicable Not applicable
- coordinates: 2 or 3 values - plus a reference frame
- positional accuracy: millimetres to kilometres distance - by method
Plane XCT: no invented physical properties.
Recognition optional Filled
- A location or arrangement relative to a reference
- Coordinates, bearings, distances or named places
- Position as a job, an opinion or a rank are other senses
- Not visible in itself; shown by markers, coordinates and diagrams.
Capabilities and actions required Filled
- state where something is in a chosen frame
- convert between coordinate systems and descriptions
- measure and record accuracy
- describe arrangement and posture
Hazards and failure modes required Filled
- Coordinates without a stated datum
- Mixing senses of the word
- Overstated accuracy
Standards and interfaces required Filled
- ISO 19111 spatial referencing by coordinates
- Geodetic datum standards such as WGS 84
- ISO 80000 quantities and units
Context of use required Filled
- Not for anything; a property of things in space.
- geographic position by latitude, longitude and height
- relative position by bearing and distance
- position in a layout or formation
- posture of a body or object
- position in a sequence or on a scale
Sources Filled
- Open English WordNet 2024, synset oewn-05081943-n - sense and gloss of the concept
- Wiktionary: position - word senses and usage
Open questions
- Should posture and arrangement be separate from location?
- How should coordinate reference systems be linked?
- The registry entry has merged sailing rig aliases that belong to a different sense; should they be removed?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-position-2/spec.json