1. ESA UNCLASSIFIED – For Official Use Migration of information along the Onion diagram F. Torelli CCSDS Fall Meeting 2013 28/10/2013

2. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 2 ESA UNCLASSIFIED – For Official Use Outline Onion diagram and SOIS EDS use cases Need different EDS structures? Need horizontal transformations between layers? Credit for the onion diagram: S. Fowell

3. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 3 ESA UNCLASSIFIED – For Official Use Onion diagram and SOIS EDS use cases

4. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 4 ESA UNCLASSIFIED – For Official Use Onion diagram and SOIS EDS

5. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 5 ESA UNCLASSIFIED – For Official Use SOIS EDS use and users Who produces EDS Middleware designer Types & terms Raw data Engineering data SOIS services Behaviour DAP DACP Who produces EDS ASW designer Types & terms Raw data Engineering data Messages Behaviour MTS SW Bus Custom functions Who produces EDS AIT & Operations Types & terms Raw SDB parameters Engineering SDB parameters TM/TC packets Behaviour PUS Operational procedures Test sequences Who produces EDS Device and equipment manufacturer Types & terms Raw data Comm. Protocol services Behaviour Bus protocols Internal equipment functions

6. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 6 ESA UNCLASSIFIED – For Official Use Do we need different EDS structures?

7. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 7 ESA UNCLASSIFIED – For Official Use EDS structure and content EDS of different layers have in common Raw data (when used) Engineering data (when used) Distinction between interface data description and access method EDS of different layers don’t have in common Access method Process description (behaviour) Level of standardisation for interface, protocols and access methods

8. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 8 ESA UNCLASSIFIED – For Official Use Consistency problem No standard protocol Data aggregation Data calibration Data re-aggregation Could be different from MTS Could be different from PUS EDS of each layer should be fully specified For a given device, if EDS for different layers exist, consistency among them should be guaranteed

9. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 9 ESA UNCLASSIFIED – For Official Use Do we need horizontal transformations between layers?

10. Migratino of information | F. Torelli | CCSDS Fall Meeting 2013 | 28/10/2013 | TEC-SWS | Slide 10 ESA UNCLASSIFIED – For Official Use Open points EDS of each layer should be fully specified  EDS schema and DoT to be more general and powerful  Problem when there is not a supporting standard protocol to rely on EDS consistency along the layers  Transformation between layers to be specified  Naming and terminology for each layer to be defined Extended scope overlaps with other SW methodologies  Model driven engineering  Component based design