1. Joint DFIG – Broker Meeting The DFIG view Peter Wittenburg

2. Brokering in short It’s about mediation between different parties
So it can be about improper fitting
It‘s about offering mediating services by 3rd parties

3. Data Fabric Cycle
Observations
Experiments
Simulations
etc.
Identify components that could improve efficiency (stepwise).
Specify them and motivate people to build and test them.
There will be common and specific components.

4. Compositions
Put components together to (complex) compositions for various purposes
Test compositions and fix connection problems
Will we have connection problems that require a flexible approach?
How big is the mapping problem?

5. Common Components
Common components are essential to reduce complexity!
There will be so many components with heterogeneity
CoCos can be served by 3rd parties – it’s a trust issue
Take the PID business where we create dependencies
Handle System
DONA
Specs, worldwide route, policies
MPA
Root registration authorities, policies
DataCite, EPIC, etc
community
Registration authorities, policies
National/community centers
Local community
Policies

6. Common Components
Missing component: authorisation solution within federations (accessible copies at various repositories)
Possible solution:
Specialised services
Dynamic aggregation of authorisation records to such a special 3rd party service
Special rights of “owners” remain
Readability by all trusted repositories
Rely already on specialised authentication services
Could do same for authorisation records – sensitive!!!
Different local solutions require mapping

7. From abstract fabrics to solutions
Common
Components
& Services
Specific
Components
& Services
Closing
urgent gaps
t-repositories
PID system
MD schemas
MD editors
Vocabularies
Collection builder
etc.
Global Digital Object Cloud

8. Conclusions Component compositions probably require flexible solutions
Common components will be required where possible to reduce complexity – built in convergence trends
Where to build in flexibility – separate layer?
Many examples for 3rd party services
Trust is the major issue
Abstract discussions don‘t bring us ahead
How to move on in concrete building/testing projects?