| 9) Our Reference Data Architecture This guides all our thinking about Data Management including the layers shown below.   | 
| 8) BI Layer with KPI for Flight Intervals The CEO responds to an Alert about his Emergency on his Smartphone.     | 
| 7) UML Flights Dimensional Model   | 
| 6) Data Warehouse   | 
| 5) Event-Driven Data Model   | 
| 4) Conceptual Data Model   | 
| 3) ERD Data Model   | 
| 2) Master Data Management The Master Data is subject to Data Governance to ensure compliance with the appropriate policies administered by Data Stewards. Master Data includes - Flight Schedules Reference Data - Airlines, Airports, etc. 1) Sparx UML Class Diagram   |