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Nordic seminar on Data Product Specifications
Simplified Data Product Specifications
The Norwegian Road Database (NVDB)
20.11.2013
Knut JetlundNorwegian Public Roads [email protected] Twitter: @JetgeoGitHub: https://github.com/jetgeo
Nordic seminar on Data Product Specifications
The Norwegian Road Database (NVDB)● Information about all state,
municipal and private roads in Norway
● Road geometry and linear referenced features and events
20.11.2013
State roads Regional roads Municipality roads
Private roads Forestry roads
10 500 km 44 300 km 38 900 km 91 200 km 48 100 km
Nordic seminar on Data Product Specifications
The Norwegian Road Database (NVDB)
● Restrictions– Speed limits, axle load, traffic direction…
● Other properties– Traffic amount, road width…
● Physical objects– Signs, man holes, railings…
● Events– Accidents, slides…
● NVDB Feature catalogue– 371 feature types
20.11.2013
Nordic seminar on Data Product Specifications
Data Product SpecificationsThe Norwegian Road Database (NVDB)
● Started with DPS in 2010– Pilot project 2008-2009
● Needed simple specifications– Created internal template– Inspired by, but not
conformant with ISO19131– Application for DPS
● One DPS pr feature type
20.11.2013
http://129.241.253.50:8080/datakatalog/eksport/produktspesifikasjon/index.htm
Nordic seminar on Data Product Specifications
Content● Identification
– name, version, definition● DPS history
– log of changes● Purpose
– Known usage and requirements● Content and structure
– Application schema● Data quality (requirements)● Data capture
Simplified Data Product Specifications
20.11.2013
Nordic seminar on Data Product Specifications
DPS Application for NVDBProKat
● Connected to the feature catalogue
● Maintenance of– Purpose– Data quality– Data capture with examples
● Automatic generation of DPS in HTML and PDF
20.11.2013
Nordic seminar on Data Product Specifications
Purpose – Known usage, requirements and examplesProKat
20.11.2013
Nordic seminar on Data Product Specifications
Data quality - requirementsProKat
20.11.2013
Nordic seminar on Data Product Specifications
Requirement levels
Data quality - RequirementsProKat
20.11.2013
Quality Requirement Classes1 = European and state roads2 = Regional roads3 = Municipality roads4 = Private and forestry roads
«timeliness»
Quality element and quality measure
Nordic seminar on Data Product Specifications
Application schema
20.11.2013
«Vegobjekttype»Dokumentasjon
«Vegobjekttype»Kommentar
«Vegobjekttype»Fartsgrense
+ Fartsgrense: Flerverdiattributt, Tall+ Vedtaksnummer: Tekst [0..1]+ Arkivnummer: Tekst [0..1]+ Gyldig fra dato: Dato
+Består av 0..*
+Er del av 1
+Består av 0..*
+Er del av 1
«Vegobjekttype»Fartsgrense
+ Fartsgrense: Flerverdiattributt, Tall+ Vedtaksnummer: Tekst [0..1]+ Arkivnummer: Tekst [0..1]+ Gyldig fra dato: Dato
«Tillatte verdier»Fartsgrense
+ 20+ 30+ 40+ 50+ 60+ 70+ 80+ 90+ 100+ 110
«Vegobjekttype»Fartsgrense
+ Fartsgrense: Flerverdiattributt, Tall+ Vedtaksnummer: Tekst [0..1]+ Arkivnummer: Tekst [0..1]+ Gyldig fra dato: Dato
constraints{Arkivnummer: Påkrevd om vedtaksnummer er gitt.}{Vedtaksnummer: Påkrevd der ny fartsgrense avviker fra standardgrensene 50 i tettbygd strøk og 80 i spredtbygd.}
● UML diagrams– Feature type with
constraints– Code lists– Associations
Nordic seminar on Data Product Specifications
● Restrictions– Speed limits
● Other properties– Road width
● Physical objects– Railings
● Events– Accidents
● http://129.241.253.50:8080/datakatalog/eksport/produktspesifikasjon/index.htm
20.11.2013
Examples of Data Product Specifications
The Norwegian Road Database (NVDB)
Nordic seminar on Data Product Specifications
Questions?20.11.2013
?
