Towards a Flexible Evolution of Digital Twins with Fluent APIs
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A first idea towards managing the Evolution of Digital Twins. Presented at ETFA 2021.
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Towards a Flexible Evolution of Digital Twins with Fluent APIs
- 1. Christian Doppler Laboratory for Model-Integrated Smart Production Institute of Business Informatics – Software Engineering Johannes Kepler University Linz Altenberger Straße 69, Science Park 3 4040 Linz Christian Doppler Laboratory for Model-Integrated Smart Production CDL-MINT Towards Flexible Evolution of Digital Twins with Fluent APIs Daniel Lehner, Antonio Garmendia, Manuel Wimmer
- 2. Motivation 2 https://github.com/derlehner/DigitalTwin_Airquality_For_Covid_Risk_Assessment/ Physical Twin Digital Twin Applications Snapshot Historical Data <<Instance>> Room101: Room <<Instance>> S1:CO2 Sensor <<Instance>> S2:TempSensor <<Instance>> S3:HumSensor <<Instance>> C1:Controller Prediction Service Simulation Service Visualization App get_data Room101: Room temp. CO2 10:05 temp. 37 10:05 CO2 800 10:06 hum. 0.7 <<Instance>> LED1: Alarm change_color hum. How to ensure consistency after an update? What to do with historical data?
- 3. Problem 3 <<conformsTo>> Decision B: Version Decision A: Migrate <<Slot>> co2 <<Instance>> S1: CO2Sensor <<Instance>> S1: CO2Sensor <<Slot>> co2 <<Slot>> co2Value Timestamp Value 10:01 600 ppm 10:02 620 ppm 10:05 650 ppm TimeStamp Value 10:05 650 ppm TimeStamp Value 10:01 600 ppm 10:02 620 ppm Decision C: Drop <<Slot>> co2 <<Instance>> S1: CO2Sensor Timestamp Value 10:05 650 ppm Evolved Schema Initial Schema <<Type>> CO2Sensor <<Property>> co2Value Initial Instance <<conformsTo>> <<Instance>> S1: CO2Sensor <<Slot>> co2Value TimeStamp Value 10:01 600 ppm 10:02 620 ppm Change <<Type>> CO2Sensor <<VersionedProperty>> co2Value <<Property>> co2
- 4. Demonstration of Fluent Interface 4 Decision B: Version Decision A: Migrate <<Slot>> co2 <<Instance>> S1: CO2Sensor <<Instance>> S1: CO2Sensor <<Slot>> co2 <<Slot>> co2Value Decision C: Drop <<Slot>> co2 <<Instance>> S1: CO2Sensor Type - createProperty(name: String) - versionProperty(name: String) - migrateData(sourceProperty: String, targetProperty: String) - dropProperty(name: String) CO2Sensor.createProperty(‚co2‘) .versionProperty(‚co2Value‘) .migrateData(‚co2Value‘, ‚co2‘); CO2Sensor.createProperty(‚co2‘) .versionProperty(‚co2Value‘); CO2Sensor.createProperty(‚co2‘) .versionProperty(‚co2Value‘) .dropProperty(‚co2Value‘); <<Type>> CO2Sensor instanceOf <<Property>> CO2 <<VersionedProperty>> CO2Value
- 5. CDL-MINT https://cdl-mint.se.jku.at/ Christian Doppler Laboratory for Model-Integrated Smart Production CDL-MINT Thank You! Comments? Questions? Feedback? Daniel Lehner daniel.lehner@jku.at http://github.com/derlehner Use Case https://github.com/derlehner/DigitalTwin_Airquality_For_Covid_Risk_Assessment/