net
Enable an agent to recognise a physical net, record its mesh and condition, and judge its suitability for a specified capture, containment, separation or support task.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 17 findings · 27 questions
Strand and mesh identity Establish the physical construction that makes this fabric a net.
Strand construction
Identify the elements forming the mesh.
Mesh-forming elements
Record strand composition and construction separately from coatings and edge reinforcement.
- What string, rope or wire forms the mesh, and how is each strand constructed? definition
- Which material identifications come from documentation, testing or visual inspection? provenance
Junctions and kind boundary
Describe how strands form a connected open fabric.
Mesh connection pattern
Record junction construction and the repeated pattern it produces without assuming all net-making methods fall within the registry definition.
- How are strands joined or interlaced at successive mesh junctions? definition
- Does the observed construction satisfy this entry's woven-strand definition, or require resolution against a neighbouring mesh or fabric model? boundary
Openings and retention Relate mesh geometry to what can pass through or be retained.
Opening geometry
Describe openings under a stated measurement condition.
Mesh size convention
Keep clear opening, junction spacing and stretched measurements distinguishable.
- What are the opening dimensions and shapes, and which measurement convention was used? measurement
- Under what tension and orientation were openings measured, and how much do they vary across the net? measurement
Selective passage
Compare the mesh with the intended retained and passing matter.
Target-mesh fit
Assess passage and retention using target geometry and deformation as well as nominal mesh size.
- Which objects or matter must be retained, and which must pass through? definition
- What observation or test establishes passage or retention when the target and mesh change shape during use? provenance
Form, edges and deployment Describe the net's overall shape and its connection to a proposed installation.
Fabric form
Record the net's extent and constructed shape.
Panel or enclosure geometry
Distinguish flat panels, tubes, bags and other forms, including seams and intentional access openings.
- What form does the net have, and where are its seams and intentional openings? definition
- What dimensions describe its relaxed and intended deployed configurations? measurement
Border interface
Describe net-owned edges and attachment features.
Edge-to-support connection
Record edge reinforcement and integral attachments while identifying external support dependencies.
- Which border ropes, hems, loops or fittings belong to the net, and which anchors or frames belong to another model? boundary
- How must the edges be positioned and attached to achieve the intended coverage without unintended gaps? action
Loading and use suitability Connect a proposed use to evidence about mesh, junction and attachment behaviour.
Mesh load response
Describe deformation and load transfer in the intended configuration.
Configuration-dependent performance
Associate load evidence with support spacing, slack, load distribution and loading mode.
- What sustained, moving or impact loads would the proposed use impose, and where would they enter the mesh? definition
- What evidence describes deformation or failure under comparable edge support, slack and load distribution? provenance
Application evidence
Determine whether available documentation supports the proposed task.
Documented use boundaries
Keep verified application limits distinct from unsupported extrapolation between net types.
- Which manufacturer instructions, test reports or application requirements apply to this net's construction and intended use? provenance
- Does that evidence support the proposed use, or must deployment wait for further assessment? action
Mesh condition and care Track defects and interventions that change the net's openings or structural continuity.
Defect distribution
Locate damage in strands, junctions and edges.
Loss of mesh integrity
Record broken strands, junction movement, abrasion, corrosion where applicable and distorted openings without inferring remaining strength from appearance alone.
- Where are damaged strands, displaced junctions, enlarged openings or failed edge connections, and what is their extent? measurement
- Which observed defects affect retention or attachment, and which require additional assessment of load performance? action
Repair and preservation
Evaluate care and repair against the specific mesh construction.
Intervention compatibility
Record whether cleaning, patching, rejoining or storage practices preserve required openings and supported performance.
- Which cleaning, repair and storage procedures are documented for this strand material and junction construction? provenance
- After repair, what inspection or testing is required before the net can return to its intended use? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of net this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these kinds and varieties hold for the sense of net this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these standards and regulation hold for the sense of net this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of net this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of net this model covers, and on what evidence? provenance
Regional variation
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these regional variation hold for the sense of net this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of net this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- noun.artifact
- Plane
- PHY
- Domain
- PHY.OBJ
- Tags
- artifact
- Facets: substance
- material
- Facets: origin
- manufactured
- Facets: agency
- inert
- Facets: mobility
- portable
- Facets: scale
- handheld
- Facets: affordances
- graspable
- Other names and narrower kinds
- cheesecloth, chicken wire, gauze, netting, veiling, gossamer, hairnet, network, mesh, meshing, meshwork, reseau
What it is Filled
A net is an open fabric formed by joining string, rope, yarn or wire into a repeated mesh whose openings permit passage of smaller objects or fluids while its strands retain, support or restrain larger objects.
In scope
- Strand materials, construction and dimensions
- Mesh geometry, opening distribution and junction construction
- Net form, dimensions, edges and integral attachments
- Interaction with retained objects, passing matter and applied loads
- Damage, deformation, repair and evidence of task suitability
Out of scope
- Individual string, rope and wire considered independently of a net
- Complete fishing, sports, lifting or fall-protection systems incorporating nets
- External frames, poles, anchors and deployment machinery
- Solid sheets, perforated plates and other neighbouring barrier forms
- Digital networks, mathematical nets and other nonphysical meanings of net
Why it exists Filled
Enable an agent to recognise a physical net, record its mesh and condition, and judge its suitability for a specified capture, containment, separation or support task.
Distinguishing features Filled
- The fabric consists of identifiable strands connected into repeated openings; holes cut through a continuous sheet do not satisfy this construction test.
- Strands connect across the fabric so that it forms a mesh, rather than a collection of loose cords or independent parallel lines.
- Open spaces between strands are a defining part of the fabric; record their dimensions rather than treating them as incidental fabric porosity.
- Membership depends on the mesh fabric, not a particular use: a fishing net, cargo net or sports net must still exhibit the registered strand-and-opening construction.
- For borderline wire mesh or woven fabric, examine strand construction and opening geometry; terminology alone does not settle inclusion.
What robots and AI may and may not do Filled
Must not
- Use a net to catch wildlife, fish or birds without the permits and mesh rules that apply.
- Leave a net in water or vegetation where it keeps catching animals unattended.
- Rely on a damaged or uncertified net for fall protection or load restraint.
- Trap or restrain a person with a net.
Only with a human decision
- Setting nets in the wild, and any use for catching animals.
- Approving a safety net for use as fall protection.
May
- Inspect a net and report mesh size, condition, markings and damage.
- Rig, deploy or stow a net it is authorized to handle, within its rated load.
Moral aspects Filled
- Abandoned nets keep killing marine animals for years.
- Safety nets are the last barrier between workers and a fatal fall.
Who is affected
- Fish, birds and marine mammals
- Workers relying on safety nets
- Fishing communities
Owners Filled
Steward
The owner or operator of the net; fisheries and workplace safety authorities regulate its use.
Links to other meta-models Filled
parent
- oewn-03314753-n - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.net-2
- Open English WordNet: oewn-03825135-n
Direct properties required Filled
- Strand material: Material designation by component; unknown where unverified
- Strand construction: Monofilament, twisted, braided, wire or other documented construction
- Strand diameter: mm, with method and range where strands differ
- Mesh opening: mm along specified axes, with clear-opening or other measurement convention and tension state
- Mesh pattern and junction type: Opening shape and pattern; knotted, interlaced or other observed junction construction
- Net form and extent: Form designation plus length, width, depth or circumference in m, with measurement state
- Edge and attachment construction: Unreinforced edge, reinforced border, edge rope, loops or other observed features
- Intended retained or passing matter: Target objects or matter, including relevant size, shape and deformability
- Supported load evidence: Linked test report or manufacturer declaration, including load units, configuration and applicability
- Mesh integrity: Observed broken strands, loose junctions, enlarged openings, edge damage and repairs, with locations
Recognition required Filled
- A mesh of knotted or knitted strands with a repeated opening size.
- Safety and cargo nets carry labels stating rating and test date.
Capabilities and actions required Filled
- Compare measured openings with the dimensions and deformability of the intended retained objects.
- Assess coverage and attachment compatibility for a proposed deployed shape.
- Locate mesh defects and identify areas requiring closer inspection.
- Evaluate documented suitability for a specified load, exposure and mounting arrangement.
- Plan cleaning, storage or repair using instructions applicable to the strand and junction construction.
Hazards and failure modes required Filled
- Ghost nets entangle and drown marine animals.
- Degraded fibres fail under load, so a net can give way without warning.
Standards and interfaces required Filled
- EN 1263, Safety nets, European Committee for Standardization.
Context of use required Filled
- Nets are used in fishing, sports, agriculture, transport and construction to capture, contain, separate or support objects.
- Their mesh openings allow smaller objects or fluids to pass while their strands retain larger objects suited to the intended task.
- Suitability depends on mesh size, material, attachment points and the condition of the strands and joints.
Sources Filled
- Open English WordNet 2024, synset oewn-03825135-n - sense and gloss of the concept
- Wiktionary: net - word senses and usage
Open questions
- Does the registry's use of 'woven' include knotted, knitted, welded or bonded strand meshes, and where does it place the boundary with wire mesh and lattice?
- Which existing Vercy model, if any, already owns this physical-net concept or its application-specific requirements?
- Which mesh measurement conventions apply to each included net construction, and how should incomparable conventions be represented?
- Which authoritative application sources establish performance requirements for fishing, cargo restraint, sports barriers and protective nets?
- What material- and application-specific evidence establishes acceptable damage, repair methods and retirement criteria?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-net-2/spec.json