Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Opus card

Opus (stylized as OPUS) is a rechargeable, dual interface (contact/contactless) smart card automated fare collection system using the Calypso Standard and is used by major public transit operators in Greater Montreal and Quebec City, Quebec, Canada. It complies with the ISO/IEC 14443 standard for smartcards and can be read by smartphones with an NFC antenna.

History, Standards & Art

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Opus card. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Location
Quebec, Canada
Launched
2008–2009
Validity
Exo · Réseau express métropolitain · Société de transport de Montréal · Société de transport de Laval · Réseau de transport de Longueuil

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

History

Card types

  • CAD Canadian dollar

Fares

Points of sale

Fare collection

Participating transit authorities

Criticisms

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Opus card

Nodes53
Edges52
Triples86
Avg. degree1.96
Density0.037736
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Opus card

Top relations

related to Prior to Opus · 18
Opus card → Autobus, By, CAM, Carte, Commission, In, Montreal, Montréal, Métro, October, Opus, Société, STM, To, TRain, TRAM, Transfers, When
related to Project Concerto · 14
Opus card → Android, ARTM, ARTM's, Bixi, Céleste, Fare, In, In October, On June, Opus, Project Céleste, STM, STM's, The STM
related to Reloadable Opus card · 14
Opus card → ABC, ABCD, All Modes AB, ARTM, CAD, Durable, Greater Montreal, ID, In, Opus, Reduced, The ARTM, They, When
related to Criticisms · 11
Opus card → Android, April, In August, McGill, NFC, Opus, STM, The ARTM, The Opus, USB, When
related to Fare collection · 11
Opus card → An Opus, Brossard, Card, Lionel-Groulx Metro, Longueuil, Lévis, Opus, REM, Saint-Hubert, Société, There
Validity · 8
Opus card → Exo, Réseau de transport de la Capitale, Réseau de transport de Longueuil, Réseau express métropolitain, Société de transport de Laval, Société de transport de Lévis, Société de transport de Montréal, Transport MRC de Joliette
related to Former participants · 7
Opus card → Agence, Bixi, Exo, Montreal, Opus, The, These
Launched · 1
Opus card → 2008–2009
Location · 1
Opus card → Quebec, Canada
Website · 1
Opus card → carteopus.info

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

opus card fares cards transit stm fare project montreal transport de buses system exo metro artm 2008 reader bus using

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Opus cardLaunched2008–20091.00infobox
Opus cardLocationQuebec, Canada1.00infobox
Opus cardValidityExo1.00infobox
Opus cardValidityRéseau express métropolitain1.00infobox
Opus cardValiditySociété de transport de Montréal1.00infobox
Opus cardValiditySociété de transport de Laval1.00infobox
Opus cardValidityRéseau de transport de Longueuil1.00infobox
Opus cardValidityRéseau de transport de la Capitale1.00infobox
Opus cardValiditySociété de transport de Lévis1.00infobox
Opus cardValidityTransport MRC de Joliette1.00infobox
Opus cardWebsitecarteopus.info1.00infobox
Opus cardrelated to CriticismsThe Opus0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.