Java Card
E68046
Java Card is a technology that enables Java-based applications to run securely on smart cards and other resource-constrained, tamper-resistant devices.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Java Card canonical | 3 |
| Java Card API | 1 |
| Java Card Runtime Environment | 1 |
| Java Card Virtual Machine | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T542300 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Java Card Context triple: [Sun Microsystems, developerOf, Java Card]
-
A.
Presto card
The Presto card is a reloadable smart card used for paying public transit fares across the Greater Toronto and Hamilton Area and other regions in Ontario, Canada.
-
B.
Clipper card
The Clipper card is a reloadable contactless smart card used to pay fares across multiple public transit systems in the San Francisco Bay Area.
-
C.
CharlieCard
The CharlieCard is a reusable contactless smart card used to pay fares on Boston's MBTA public transit system.
-
D.
TAP card
The TAP card is a reusable contactless smart card used to pay fares across public transit systems in the Los Angeles County region.
-
E.
OV-chipkaart
OV-chipkaart is the nationwide contactless smart card system used for paying public transport fares across the Netherlands.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Java Card Target entity description: Java Card is a technology that enables Java-based applications to run securely on smart cards and other resource-constrained, tamper-resistant devices.
-
A.
Presto card
The Presto card is a reloadable smart card used for paying public transit fares across the Greater Toronto and Hamilton Area and other regions in Ontario, Canada.
-
B.
Clipper card
The Clipper card is a reloadable contactless smart card used to pay fares across multiple public transit systems in the San Francisco Bay Area.
-
C.
CharlieCard
The CharlieCard is a reusable contactless smart card used to pay fares on Boston's MBTA public transit system.
-
D.
TAP card
The TAP card is a reusable contactless smart card used to pay fares across public transit systems in the Los Angeles County region.
-
E.
OV-chipkaart
OV-chipkaart is the nationwide contactless smart card system used for paying public transport fares across the Netherlands.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Java platform
ⓘ
embedded software platform ⓘ smart card technology ⓘ |
| backwardCompatibleWith | earlier Java Card specifications ⓘ |
| communicationProtocol |
ISO/IEC 7816 APDU
ⓘ
linked to:
ISO/IEC 7816
contactless smart card protocols ⓘ |
| component |
Java Card API
ⓘ
linked to:
Java Card
Java Card Runtime Environment ⓘ
linked to:
Java Card
Java Card Virtual Machine ⓘ
linked to:
Java Card
|
| developer |
Oracle Corporation
ⓘ
Sun Microsystems ⓘ |
| feature |
APDU-based communication
ⓘ
application isolation ⓘ backward compatibility across versions ⓘ bytecode interpreter ⓘ cryptographic support ⓘ firewall mechanism between applets ⓘ limited Java class library ⓘ persistent object storage in EEPROM or flash ⓘ secure execution environment ⓘ support for applet lifecycle management ⓘ support for multiple applications on a single card ⓘ transaction mechanism for data consistency ⓘ |
| memoryModel | separate persistent and transient memory ⓘ |
| programmingLanguage | Java ⓘ |
| securityProperty |
secure key storage
ⓘ
support for asymmetric cryptography ⓘ support for digital signatures ⓘ support for secure authentication ⓘ support for symmetric cryptography ⓘ tamper-resistant execution ⓘ |
| standardizedBy |
ETSI
ⓘ
GlobalPlatform ⓘ ISO/IEC ⓘ |
| supportsLanguageSubset | Java Card language subset ⓘ |
| targetDevice |
SIM card
ⓘ
UICC ⓘ embedded secure chip ⓘ secure element ⓘ smart card ⓘ |
| typicalEnvironment |
resource-constrained devices
ⓘ
tamper-resistant devices ⓘ |
| useCase |
access control badges
ⓘ
banking cards ⓘ e-passports ⓘ identity cards ⓘ loyalty cards ⓘ mobile network operator SIMs ⓘ payment cards ⓘ transportation and ticketing cards ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Java Card Description of subject: Java Card is a technology that enables Java-based applications to run securely on smart cards and other resource-constrained, tamper-resistant devices.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.