1. RDA Data Foundation and Terminology (DFT) WG
A PID record that points to a metadata record and to instantiations of identical bit-streams that may store additional attributes
Prepared for 3rd Plenary DFT WG Sessions 1 & 2, March 27, 2014
Co-Chairs DFT WG: Gary Berg-Cross, Raphael Ritz, Peter Wittenburg
European Early Career Researchers & Scientists working with Data Scribe:
Reko Hynönen., University of Helsinki, Finnish meteorological institute

2. Outline for Sessions 1 (1100-1230) & 2 (1330-1500)
Session 1 (90m)
0. BRIEF Intros ?
Short Background session -5
Where we are now
Where we think we are going -2
Use Cases
Wittenburg & Ritz
Reagan Moore
Hans Pfeiffenberger
Discussion of 3 Core Area -50
Data and Digital Objects & Entities
Persistent Identifier / PID Record / PID Attribute / PID Resolution / Reference Resolution
Aggregation / Collection / Data Set / Corpus / Container….
Session 2 (90m)
Follow up to Session
Discussion of 7 Core Areas – 70
Bit Stream / Instances of Bit Stream / Data Stream
Identity / Integrity / Authenticity
Object Property / Object Attribute / Property Record / Internal Property / External Property
Data Organization / Data Model
Repository / Repository of Origin
Data / Realtime Data / Gappy Data / Dynamic Data
Data LifeCycle (as time permits)
Wrap up and Next Steps

3. Background - DFT Goals
See Case Statement Briefing(
Describe a basic, abstract (but clear) data organization model that systemizes the already large body of definition work on data management terms, especially as involved in RDA’s efforts.
The model and its derived reference data should be sound, practical and agreed to within the community for use:
across communities and stakeholders to better synchronize data conceptualization,
to enable better understanding within and between communities, and
to stimulate adopters & tool building, such as for data services, supportive of the basic model’s use.
Need to get the story straight on model to govern the use of related tools.
Models & Candidate List
Evolves to
Refined List
DFT WG Discussion
& Plenary 3
Cross WGs
Future Work
2015?

4. Five Stage Process Data Foundation and Terminology (DFT) Vocabulary Development Process by Gary Berg-Cross
Start up/Scoping Requirements analysis and development of candidate list
Tool prototyping
Vocabulary Analysis & Revision Process (after 2nd Plenary)
Tool demo and final requirements at 3rd Plenary
Show Core vocabulary in table form for discussion
Focused Vocabulary Design Process and Community Agreement (at and after 3rd Plenary)
Refinement & Maintenance (ongoing)
Draft Vocabulary Publication and Review (4th Plenary)

5. Overview of Term Development
Scope
Terms from
Model Papers
Placed In Tool
Getting Defs
organized for
review
Digital Object
A digital object is composed of structured sequence of bits/bytes. As an object it is named. This bit sequence can be identified & accessed by a unique and persistent identifier or by use of referencing attributes describing its properties.
Analysis and Revision Process
Term Definition Tool prototyped and developed at Rechenzentrum Garching (RZG) der Max-Planck-Gesellschaft
Defs & Refinement
Starter areas and items :
Persistent Identifiers (PIDs and types)
Digital Object - Data Object
Collection - Data Set - Aggregation
Repository (Registries and related Policies)

6. Latest Version of Term Definition Tool (TeD-T?)

7. Term Definition Example
Alternative?
digital entity: An entity represented as, or converted to, a machine-independent data structure consisting of one or more elements in digital form that can be parsed by different information systems; the structure helps to enable interoperability among diverse information systems in the Internet.
From Framework for discovery of identity
management information
Revision Discussion: : This definition does not refer to our practice and is not specific enough. A digital object can cover different types of digital information such as data, software, knowledge etc. So we should separate data and other types of digital information. Also the reference to databases is not useful enough since there are many types of “containers” data is in - the term “database” does not help us since it refers to any type of container. And in DFT we need to stress the fact that a DO is something that has an identity one can refer to, that has a number of properties that can be accessed etc Peter
This page was last modified on 9 December 2013, at 14:03.

8. PID Term and Discussion
Discussion on and Tool (
We should emphasize that persistence is not purely technical, which is a point I think John Kunze in particular would agree to - there's social contracts associated with the idea of persistence. If you don't put those policies in place, persistence is undefined at best. Which, on 2nd thought, also means that not just the resolution service is persistent, but also the association between identifier and target object. Which is a contract probably put on the shoulders of the agent requesting the PID in the first place, because the service will be unable to decide/maintain this.-- Tobias
Tobias, you have evoked a few things such as PID Service (need to include this as a term). So should we have defs with the idea of a Contract by Agent as part of the metadata for a PID? Assertions: PID Requesting Agent (sub-type of Agent) contracts to maintain connection (definition?) between ID & Target Object. TO has contract. PID service is a service.– Gary
The PID Service and the PID System might be the same thing in reality. One diff may be that the PID System is maintaining a Resolution Service, while the PID Service is the entity with which the contract is made. Each PID Service employs a PID System. Each PID System can be employed by several PID Services.
Example for a PID Service: DataCite
Example for a PID System: The DOI System
Example for a Resolution Service: 2a00:1a48:7805:112:2c13:65be:ff08:2e89 - better known as dx.doi.org
(In reality, there really is a contract between e.g. DKRZ and DataCite; so this seems adequate) TobiasWeigel (talk) 09:01, 10 December 2013 (UTC)

9. Conceptual Spaces Refinements Peter’s Original property contains_a
digital
object
bit
stream
instance
of a bit
service
informational
aggregation
data
is_a
is_part_of
has_a
has_many
collection
metadata
record
PID
is_equal
set
corpus
attribute
property
contains_a
Refinements
Peter’s Original

10. Status & Plan Going Forward
We now have a table of Core Terms with some initial Definitions
Some are also in the Tool as examples - some still being updated.
The P3 meeting represents an opportunity to take stock and do some editing, testing of ideas and refining as well as strategize on next steps.
Can we get some sense of agreement and where issues are for the WG-Core???
Work at 3rd Plenary
Document status
Tool and Demo
Discussion of working Core, getting buy-in and next steps
Schedule Note– “we will never to ‘done’ “ with the topic, but the WG will complete its targeted mission.
“Unity, not uniformity, must be our aim. We attain unity only through variety. 
Differences must be integrated, not annihilated, nor absorbed.” 
Mary Parker Follett , The New State, 1918, p.39.  

11. Checklist of Issues/Powerful Questions - What is Needed for DFT Term Progress?
Ramp up of effort by DFT WG Community
Review of table, categories and definition refinement
Confirmation of scope of work
How do we handle points of contention?
What is the process by which we converge and move to adoption?
Training in and exposure of Term Tool (Demo tomorrow)
Use by other WGs for their needs
Is our table example useful as a model for them?
Further test of Use Case Scenarios (as presented at the P3 DFT WG)
Are they useful?
Do they need to be adapted or drilled down to more detail?
Do we need examples of term-concepts involved with real data (such as Reagan’s)?

12. Today’s Sessions- A focus on the following terms / term
 we need to make a quantum job in defining a few terms.
We need to argue from the different data models/organizations that were presented and of course also look what others have done. Our Core clusters:
Data / Realtime Data / Dynamic Data
Digital Object / Data Object / Information Object/Representation Object
Bit Stream / Instances of Bit Stream / Data Stream
Identity / Identify Management/Integrity / Authenticity
Object Property / Object Attribute / Property Record / Internal Property / External Property
Persistent Identifier / PID Record / PID Attribute / PID Resolution / Reference Resolution
Data Organization / Data Model
Repository / Repository of Origin
Aggregation / Collection / Data Set / Corpus / Container/ Gappy Data /
Data LifeCycle & Operations