{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.port-q2443617","code":"thing-q2443617","url":"https://ver.cy/models/thing/q2443617/","name":"port","alternateNames":[],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.REL"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"In circuit theory, a pair of terminals through which an electrical network or circuit connects to an external circuit, with current entering one terminal equal to current leaving the other and a voltage defined between the terminals.","purpose":"Let an agent explain circuit ports, their terminal voltages and currents, and their role in describing connections between electrical networks.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Each port consists of a pair of terminals.","The current entering one terminal equals the current leaving the other.","Port voltage is defined between the two terminals.","A network may be represented using one or more ports."],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a port is.","layers":[{"id":"concept","name":"Concept","description":"Concept and kinds.","findings":[{"id":"concept-finding","name":"Concept","description":"Concept.","questions":[{"text":"What is a port, and how do physical, network and software ports differ?","kind":"definition"},{"text":"Is the computing or another sense of port meant?","kind":"boundary"}]}]},{"id":"standards","name":"Standards","description":"Standards.","findings":[{"id":"standards-finding","name":"Standards","description":"Standards.","questions":[{"text":"What standards govern hardware ports, and how are network port numbers assigned?","kind":"provenance"},{"text":"Which entry fits a specific interface standard?","kind":"action"}]}]}]},{"id":"use","name":"Use","description":"Configuration and troubleshooting.","layers":[{"id":"configure","name":"Configure","description":"Configuring ports.","findings":[{"id":"configure-finding","name":"Configure","description":"Configuration.","questions":[{"text":"How are network ports configured, forwarded and checked for a service, in general terms?","kind":"action"},{"text":"Which entry fits network configuration?","kind":"action"}]}]},{"id":"troubleshoot","name":"Troubleshoot","description":"Troubleshooting.","findings":[{"id":"troubleshoot-finding","name":"Troubleshoot","description":"Troubleshooting.","questions":[{"text":"Why might a device or service not connect, and how are port problems diagnosed?","kind":"action"},{"text":"Which entry fits network troubleshooting?","kind":"action"}]}]}]},{"id":"security","name":"Security","description":"Security.","layers":[{"id":"exposure","name":"Exposure","description":"Open ports and exposure.","findings":[{"id":"exposure-finding","name":"Exposure","description":"Exposure.","questions":[{"text":"Why do open ports matter for security, and what defensive practices do security bodies recommend?","kind":"provenance"},{"text":"Is the request seeking operational attack detail, which must be declined?","kind":"boundary"}]}]},{"id":"firewalls","name":"Firewalls","description":"Firewalls.","findings":[{"id":"firewalls-finding","name":"Firewalls","description":"Firewalls.","questions":[{"text":"How do firewalls control traffic by port?","kind":"provenance"},{"text":"Which entry fits firewalls?","kind":"action"}]}]}]},{"id":"learn","name":"Learn","description":"History and teaching.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did hardware ports evolve from serial and parallel to universal serial bus, and how did network ports arise?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"teach","name":"Teach","description":"Teaching.","findings":[{"id":"teach-finding","name":"Teach","description":"Teaching.","questions":[{"text":"How can ports be taught in computing education?","kind":"action"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Explain circuit ports and the equal-current condition.","Interpret port voltage and current conventions in circuit models.","Describe one-port and multiport network representations."],"mustNot":["Assume that any two terminals satisfy the port condition.","Confuse circuit-theory ports with network service numbers or software interfaces.","Treat an abstract port model as proof that a physical connection is safe.","Authorize physical circuit changes beyond its assigned authority."],"requiresHuman":["Safety-critical decisions about physical circuit connections require a qualified human."]},"ethics":{"considerations":["Incorrect circuit models can endanger people and damage equipment.","Model assumptions and reference conventions should be explicit."],"affectedParties":["People working with the circuit are affected.","Equipment owners are affected.","Users of connected equipment are affected."]},"owners":{"steward":"The responsible circuit designer or equipment owner oversees the applicable circuit model and physical implementation.","roles":[],"masterSystems":[]},"relations":[{"target":"Q230629","type":"parent","note":"registry parent class"},{"target":"connection","type":"related","note":"category"},{"target":"computer architecture","type":"related","note":"input and output in system design"},{"target":"internet service provider","type":"related","note":"network services reached by ports"},{"target":"cyberattack","type":"related","note":"ports as points of exposure"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.port-q2443617","Wikidata: Q2443617 (https://www.wikidata.org/wiki/Q2443617)"]},"properties":{"applicability":"not-applicable","items":[]},"recognition":{"applicability":"optional","items":["A circuit diagram may show a port as a pair of terminals at a network boundary.","Voltage polarity marks and current arrows may identify the port's reference conventions.","A physical socket or numbered network service does not by itself identify a circuit-theory port.","Sockets on devices; numbers in network configuration."]},"capabilities":{"applicability":"required","items":["explain hardware, network and software ports","describe standards","support troubleshooting generally","separate other senses"]},"hazards":{"applicability":"required","items":["Treating arbitrary terminals as a port without the equal-current condition can invalidate a model.","Inconsistent voltage polarities and current directions can produce incorrect results.","Confusing circuit ports with computing interfaces can lead to inappropriate assumptions.","Physical circuit connections can expose people and equipment to electrical hazards."]},"interfaces":{"applicability":"required","items":["Hardware interface standards","Registered port number assignments","Security guidance on open ports"]},"context":{"applicability":"required","items":["Connection points for devices and programs.","physical hardware ports","network ports and port numbers","software and application ports","serial and legacy ports","virtual and console ports"]}},"sources":[{"title":"Wikidata item Q2443617: port","url":"https://www.wikidata.org/wiki/Q2443617","note":"identity and sense of the item"},{"title":"Wikipedia: Port (circuit theory)","url":"https://en.wikipedia.org/wiki/Port_%28circuit_theory%29","note":"general description of the item"}],"openQuestions":["Should network ports be a separate entry?","How should interface standards be linked?","How should security guidance be linked?"],"resources":{"spec":"/models/things/publications/thing-q2443617/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q2443617/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T06:07:38Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:29+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}