1. An introduction to ISO 15926-2 Industrial automation systems and integration – Integration of life-cycle data for process plants including oil and gas production facilities – Part 2: Data model David Leal CAESAR Systems Limited david.leal@caesarsystems.co.uk

2. Key parts of ISO 15926-2 Precise statements –Implemented in EXPRESS –Superseded by RDF Physical individuals and classes –serial numbered item and model 4D approach to change –Practical approach to life cycle Small number of key relationships –partOf, connectedTo, contains Formal approach to physical properties

3. Assets and facilities An asset is an item of equipment which has a material identity. –Hence an asset retains its identity when it is removed a system and is maintained or used elsewhere A facility is a part of a system which has a functional identity. –A facility cannot be removed from the system of which it is a part and used elsewhere. An asset is installed to provide, or act as, a facility.

4. Assets and facilities time space facility G_101 asset n o. 98-12345 in store asset n o. 84-78910 being repaired 2008-04-28T15:00 replacement of equipment installed as G_101 2008-09-12T23:00

5. Temporal parts A period in the life of an object is another object – a temporal part. A statement about an object which is true for a period of time, but not always, is made about the temporal part. √  :Y91_SPF a :MotorCar ; :ownedBy mailto:david.leal@caesarsystems.co.uk.

6. Temporal parts A period in the life of an object is another object – a temporal part. A statement about an object which is true for a period of time, but not always, is made about the temporal part. √ √ :Y91_SPF a :MotorCar. :Y91_SPF_2006-01-11_to_2008-05-13 :part2:temporalPartOf :Y91_SPF ; :during [ t:hasBeginning [t:inXSDDateTime 2006-01-11 ] ; t:hasEnd [t:inXSDDateTime 2008-05-13 ] ] ; :ownedBy mailto:david.leal@caesarsystems.co.uk. temporal part – a key concept in ISO 15926-2

7. Temporal parts – assets and facilities time space facility G_101 asset n o. 98-12345 in store asset n o. 84-78910 being repaired 2008-04-28T15:00 replacement of equipment installed as G_101 2008-09-12T23:00 output 100000 kilowatt-hours [ :part2:temporalPartOf :G_101 ; :during [ t:hasBeginning [t:inXSDDateTime 2008-01-11 ] ; t:hasEnd [t:inXSDDateTime 2008-01-25 ] ] ; :outputActivePower [ part4:kilowatt-hour 100000 ].

8. Temporal parts – assets and facilities time space facility G_101 asset n o. 98-12345 in store asset n o. 84-78910 being repaired 2008-04-28T15:00 replacement of equipment installed as G_101 2008-09-12T23:00 output 100000 kilowatt-hours [ :part2:temporalPartOf :84-78910 ; :part2:temporalPartOf :G_101 ; :during [ t:hasBeginning [t:inXSDDateTime 2008-01-11 ] ; t:hasEnd [t:inXSDDateTime 2008-01-25 ] ] ; :outputActivePower [ part4:kilowatt-hour 100000 ].

9. Relationships between physical objects part of –temporally –assembly connected to contains there is nothing much else you can say :A part2:partOf :B. :A part2:connectedTo :C. :A part2:contains :D. but if you want to defined more relationships you can – as reference data

10. Classification what sort of thing something is :MyAsset part2:classifiedAs adv:Model_ABC_V5 ; part2:classifiedAs part4:CentrifugalPump. Part 2 has a vocabulary for classification.

11. Classification what sort of thing something is :MyAsset a adv:Model_ABC_V5 ; a part4:CentrifugalPump. Part 2 has a vocabulary for classification. It is built-in to the RDF/N3 representation

12. Specialisation relationship between sorts of thing adv:Model_ABC_V5 part2:specialisationOf part4:CentrifugalPump. Part 2 has a vocabulary for classification.

13. Specialisation relationship between sorts of thing adv:Model_ABC_V5 rdfs:subClassOf part4:CentrifugalPump. Part 2 has a vocabulary for classification. RDF has an equivalent vocabulary.

14. Specialisation the vocabulary is used within part 4 part4:CentrifugalPump rdfs:subClassOf part4:Pump.

15. Physical properties relationships to physical quantities operatingVoltage ElectricPotential volt 230 MyAsset 230 V type Real type “indirect physical property” physical quantity space scale

16. Physical properties relationships to physical quantities operatingVoltage ElectricPotential volt 230 MyAsset 230 V type Real type Part 4 contains a vocabulary of properties Part 4 contains a vocabulary of scales

17. Physical properties relationships to physical quantities operatingVoltage ElectricPotential volt 230 MyAsset type Real type this can be anonymous

18. Physical properties relationships to physical quantities :MyAsset part4:operatingVoltage [ part4:volt 230 ]. Reality check: Is there unnecessary complexity?