QUDT models are based on dimensional analysis expressed in the OWL Web Ontology Language (OWL). The dimensional approach relates each unit to a system of base units using numeric factors and a vector of exponents defined over a set of fundamental dimensions. In this way, the role of each base unit in the derived unit is precisely defined. A further relationship establishes the semantics of units and quantity kinds. By this means, QUDT supports reasoning over quantities as well as units. QUDT models may be translated into other representations for machine processing, or other programming language structures according to need.
Catalog content is organized in the following sections:
| # | Graph Type | Catalog Entry Title | Cataloged Graph | Graph Status | Ontology | Documentation |
|---|---|---|---|---|---|---|
| 1 | Schema graph | CITATION | in QA | |||
| 2 | Schema graph | QUDT | http://qudt.org/2.0/schema/qudt | published 2017-02-04 | ||
| 3 | Schema graph | QUDT Datatypes Schema | http://qudt.org/2.0/schema/datatype | published 2017-05-09 | ||
| 4 | Schema graph | QUDT Science | http://qudt.org/2.0/schema/qudt/science | published 2017-05-07 | ||
| 5 | Schema graph | QUDT-ENGINEERING | http://qudt.org/2.0/schema/qudt/engineering | in QA | ||
| 6 | Schema graph | QUDT-FINANCE | http://qudt.org/2.0/schema/qudt/finance | in QA | ||
| 7 | Schema graph | UNICODE | http://qudt.org/2.0/schema/unicode | in QA |
| # | Graph Type | Catalog Entry Title | Cataloged Graph | Graph Status | Ontology | Documentation |
|---|---|---|---|---|---|---|
| 1 | Vocabulary graph | QUDT QUANTITIES - BASE | http://qudt.org/2.0/vocab/quantitykind/base | in QA | ||
| 2 | Vocabulary graph | QUDT QUANTITY KIND FOR ACOUSTICS | http://qudt.org/2.0/vocab/quantitykind/acoustics | in QA | ||
| 3 | Vocabulary graph | QUDT QUANTITY KIND FOR AERODYNAMICS | http://qudt.org/2.0/vocab/quantitykind/aerodynamics | in QA | ||
| 4 | Vocabulary graph | QUDT QUANTITY KIND FOR ATMOSPHERIC-PHYSICS | http://qudt.org/2.0/vocab/quantitykind/atmospheric-physics | in QA | ||
| 5 | Vocabulary graph | QUDT QUANTITY KIND FOR ATOMIC-AND-NUCLEAR-PHYSICS | http://qudt.org/2.0/vocab/quantitykind/atmospheric-physics | in progress | ||
| 6 | Vocabulary graph | QUDT QUANTITY KIND FOR CELESTIAL-MECHANICS | http://qudt.org/2.0/vocab/quantitykind/celestial-mechanics | in progress | ||
| 7 | Vocabulary graph | QUDT QUANTITY KIND FOR CGS | http://qudt.org/2.0/vocab/quantitykind/cgs | in QA | ||
| 8 | Vocabulary graph | QUDT QUANTITY KIND FOR CHARACTERISTIC-NUMBERS | http://qudt.org/2.0/vocab/quantitykind/characteristic-numbers | in progress | ||
| 9 | Vocabulary graph | QUDT QUANTITY KIND FOR CHEMISTRY | http://qudt.org/2.0/vocab/quantitykind/chemistry | in QA | ||
| 10 | Vocabulary graph | QUDT QUANTITY KIND FOR CLIMATOLOGY | http://qudt.org/2.0/vocab/quantitykind/climatology | in progress | ||
| 11 | Vocabulary graph | QUDT QUANTITY KIND FOR COMMUNICATIONS | http://qudt.org/2.0/vocab/quantitykind/communications | in progress | ||
| 12 | Vocabulary graph | QUDT QUANTITY KIND FOR DIMENSIONLESS | http://qudt.org/2.0/vocab/quantitykind/dimensionless | in QA | ||
| 13 | Vocabulary graph | QUDT QUANTITY KIND FOR ELECTRICITY-AND-MAGNETISM | http://qudt.org/2.0/quantity/unit/electromagnetism | in QA | ||
| 14 | Vocabulary graph | QUDT QUANTITY KIND FOR ENERGY | http://qudt.org/2.0/vocab/quantitykind/energy | in QA | ||
| 15 | Vocabulary graph | QUDT QUANTITY KIND FOR FINANCE | http://qudt.org/2.0/vocab/quantitykind/finance | in QA | ||
| 16 | Vocabulary graph | QUDT QUANTITY KIND FOR IMPERIAL | http://qudt.org/2.0/vocab/quantitykind/imperial | in QA | ||
| 17 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO | http://qudt.org/2.0/vocab/isq/quantitykind/iso | in QA | ||
| 18 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-ACOUSTICS | http://qudt.org/2.0/vocab/quantitykind/iso-acoustics | in QA | ||
| 19 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-ATOMIC-AND-NUCLEAR-PHYSICS | http://qudt.org/2.0/vocab/isq/quantitykind/atomic-and-nuclear-physics | in progress | ||
| 20 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-ELECTROMAGNETISM | http://qudt.org/2.0/vocab/isq/quantitykind/electromagnetism | in QA | ||
| 21 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-INFORMATION-SCIENCE-AND-TECHNOLOGY | http://qudt.org/2.0/vocab/isq/quantitykinds/information-science-and-technology | in progress | ||
| 22 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-LIGHT | http://qudt.org/2.0/input/VOCAB_QUDT-ISQ-Quantity-light | in QA | ||
| 23 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-NUMBERS | in progress | |||
| 24 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-PHYSICAL-CHEMISTRY-AND-MOLECULAR-PHYSICS | in progress | |||
| 25 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-TELEBIOMETRICS-HUMAN-PHYSIOLOGY | in progress | |||
| 26 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-TEMPLATE | in progress | |||
| 27 | Vocabulary graph | QUDT QUANTITY KIND FOR ISO-THERMODYNAMICS | in progress | |||
| 28 | Vocabulary graph | QUDT QUANTITY KIND FOR LIFE-SCIENCES | http://qudt.org/2.0/vocab/quantitykind/lifesciences | in progress | ||
| 29 | Vocabulary graph | QUDT QUANTITY KIND FOR LIGHT | http://qudt.org/2.0/vocab/quantitykind/light | in QA | ||
| 30 | Vocabulary graph | QUDT QUANTITY KIND FOR MASS | http://qudt.org/2.0/vocab/quantitykind/mass | in progress | ||
| 31 | Vocabulary graph | QUDT QUANTITY KIND FOR MECHANICS | http://qudt.org/2.0/vocab/quantitykind/mechanics | in progress | ||
| 32 | Vocabulary graph | QUDT QUANTITY KIND FOR NIST-CONSTANTS | in progress | |||
| 33 | Vocabulary graph | QUDT QUANTITY KIND FOR NUCLEAR-PHYSICS | http://qudt.org/2.0/vocab/quantitykind/nuclear-physics | in progress | ||
| 34 | Vocabulary graph | QUDT QUANTITY KIND FOR PHOTOMETRY | http://qudt.org/2.0/vocab/quantitykind/photometry | in progress | ||
| 35 | Vocabulary graph | QUDT QUANTITY KIND FOR PHYSICAL-CHEMISTRY-AND-MOLECULAR-PHYSICS | http://qudt.org/2.0/vocab/quantitykind/physical-chemistry-and-molecular-physics | in progress | ||
| 36 | Vocabulary graph | QUDT QUANTITY KIND FOR PHYSICS | in progress | |||
| 37 | Vocabulary graph | QUDT QUANTITY KIND FOR PLANCK | in progress | |||
| 38 | Vocabulary graph | QUDT QUANTITY KIND FOR PROPULSION | in progress | |||
| 39 | Vocabulary graph | QUDT QUANTITY KIND FOR RADIOLOGY | in progress | |||
| 40 | Vocabulary graph | QUDT QUANTITY KIND FOR RADIOMETRY | in progress | |||
| 41 | Vocabulary graph | QUDT QUANTITY KIND FOR SI | in progress | |||
| 42 | Vocabulary graph | QUDT QUANTITY KIND FOR SOLID-STATE-PHYSICS | in progress | |||
| 43 | Vocabulary graph | QUDT QUANTITY KIND FOR SPACE-AND-TIME | http://qudt.org/2.0/vocab/quantitykind/space-and-time | in progress | ||
| 44 | Vocabulary graph | QUDT QUANTITY KIND FOR TELEBIOMETRICS | http://qudt.org/2.0/vocab/quantitykind/telebiometrics | in progress | ||
| 45 | Vocabulary graph | QUDT QUANTITY KIND FOR THERMODYNAMICS | http://qudt.org/2.0/vocab/quantitykind/thermodynamics | in progress | ||
| 46 | Vocabulary graph | QUDT QUANTITY KIND FOR USCUSTOMARY | in progress | |||
| 47 | Vocabulary graph | QUDT SI System of Units | http://qudt.org/2.0/vocab/sou/si | in QA | ||
| 48 | Vocabulary graph | QUDT UNITS - ACOUSTICS | http://qudt.org/2.0/vocab/unit/acoustics | published 2017-05-09 | ||
| 49 | Vocabulary graph | QUDT UNITS - AEROSPACE | http://qudt.org/2.0/vocab/unit/aerospace | in QA | ||
| 50 | Vocabulary graph | QUDT UNITS - ASTRONOMY | http://qudt.org/2.0/vocab/unit/astronomy | in QA | ||
| 51 | Vocabulary graph | QUDT UNITS - ATOMIC and NUCLEAR PHYSICS | http://qudt.org/2.0/vocab/unit/atomic-and-nuclear-physics | in QA | ||
| 52 | Vocabulary graph | QUDT UNITS - CLINICAL-INFORMATICS | http://qudt.org/2.0/vocab/unit/clinical-informatics | in QA | ||
| 53 | Vocabulary graph | QUDT UNITS - CURRENCY | in progress | |||
| 54 | Vocabulary graph | QUDT UNITS - ELECTROMAGNETISM | http://qudt.org/2.0/vocab/unit/electromagnetism | published 2017-03-20 | ||
| 55 | Vocabulary graph | QUDT UNITS - ENVIRONMENTAL SCIENCE | in progress | |||
| 56 | Vocabulary graph | QUDT UNITS - INFORMATICS | in QA | |||
| 57 | Vocabulary graph | QUDT UNITS - LIFE-SCIENCES | http://qudt.org/2.0/vocab/unit/life-sciences | in QA | ||
| 58 | Vocabulary graph | QUDT UNITS - LIGHT | http://qudt.org/2.0/vocab/unit/light | published 2017-05-09 | ||
| 59 | Vocabulary graph | QUDT UNITS - MECHANICS | http://qudt.org/2.0/vocab/unit/mechanics | in QA 2017-03-19 | ||
| 60 | Vocabulary graph | QUDT UNITS - OTHER | in progress | |||
| 61 | Vocabulary graph | QUDT UNITS - PHYSICAL CHEMISTRY and MOLECULAR PHYSICS | http://qudt.org/2.0/vocab/unit/physical-chemistry-and-molecular-physics | published 2016-09-25 | ||
| 62 | Vocabulary graph | QUDT UNITS - SOLID STATE PHYSICS | http://qudt.org/2.0/vocab/unit/solid-state-physics | published | ||
| 63 | Vocabulary graph | QUDT UNITS - SPACE and TIME | http://qudt.org/2.0/vocab/unit/space-and-time | published 2017-02-04 | ||
| 64 | Vocabulary graph | QUDT UNITS - TELEBIOMETRICS | in progress | |||
| 65 | Vocabulary graph | QUDT UNITS - THERMODYNAMICS | http://qudt.org/2.0/vocab/unit/thermodynamics | published | ||
| 66 | Vocabulary graph | QUDT Units - Base | http://qudt.org/2.0/vocab/unit/base | published 2017-02-04 | ||
| 67 | Vocabulary graph | QUDT-DIMENSIONLESS-UNITS | http://qudt.org/2.0/vocab/dimensionalunit | in QA | ||
| 68 | Vocabulary graph | QUDT-SOU-CGS | http://qudt.org/2.0/vocab/unit/cgs | in QA | ||
| 69 | Vocabulary graph | QUDT-SOU-GAUSS | http://qudt.org/2.0/vocab/unit/gauss | in QA | ||
| 70 | Vocabulary graph | QUDT-SOU-IMPERIAL | http://qudt.org/2.0/vocab/unit/imperial | in QA | ||
| 71 | Vocabulary graph | QUDT-SOU-NASA | http://qudt.org/2.0/vocab/unit/nasa | in QA | ||
| 72 | Vocabulary graph | QUDT-SOU-PLANCK | http://qudt.org/2.0/vocab/unit/planck | in QA | ||
| 73 | Vocabulary graph | QUDT-SOU-USCUSTOMARY | http://qudt.org/2.0/vocab/unit/uscustomary | in QA |