epic and the Handle System

Transcription

1 and the System PID-Tutorial at RDA-D Gesellschaft für wissenschaftliche Datenverarbeitung mbh Göttingen (GWDG) Am Fassberg, Göttingen ulrich.schwardmann [at] gwdg.de 25 November 2015, Potsdam

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7 PIDs and the /abc are strings consisting of a prefix ( ) and a suffix (abc), separated by a slash ( / ) a prefix consists of digits and dots a prefix is typically owned by some local organisation a suffix is a UTF-8 string a suffix should be an alphanumerical string with other printable characters additional suffix policies are in the responsibility of the prefix owner 7 / 21

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10 Digital Object Numbering Authority the administrative responsibility of the System is currently handed over to an international organisation Digital Object Numbering Authority (): is a swiss foundation under the auspices of the International Telecommunication Union (ITU), the United Nations specialized agency for information and communication technologies the assignment of prefixes is controlled by Multi-primary Prefix Administrators (MPAs) are responsible for prefix namespaces DOI fits into this framework (for the namespace 10.xxx), but there are still bilateral contracts between DOI and CNRI. and the 10 / 21

11 The Life Cycle data intensive research is highly collaborative scientists share data already in an early state ad hoc techniques for sharing are often prohibitive reliable references can accellerate the Research Life Cycle and the 11 / 21

12 The Life Cycle data intensive research is highly collaborative scientists share data already in an early state ad hoc techniques for sharing are often prohibitive reliable references can accellerate the Research Life Cycle and the 12 / 21

13 The Members build a network of currently six strong scientific service providers that signed a contract to ensure a reliable and persistent identifier infrastructure devoted to the needs of the research community at large. Mayor focus: the referability of scientific data and data sources with possibly fine granularity and for data sharing during the research process and the 13 / 21

14 The Members signed a contract to ensure high availabitity for the PID services and a long term perspective at organisational level have agreed on a Quality of Service Level, have implemented a redundancy scheme share the same service, the same API and the same framework of policies and the 14 / 21

15 The Members has minted already more then 35 million PIDs uses currently about 30 prefixes two have more than 8 million, three more than 2 million PIDs takes an important part in the global System on behalf of GWDG is a Multi Primary Adminstistrator (MPA) in on behalf of GWDG provides a MPA GHR and a Proxy Server and the will run a data type registry for PID info types 15 / 21

16 Quality of Service and the Conditions of Operation user management, privacy protection and secrecy incident management and monitoring support system with agreed responsabilties certification of PID services several policies for PID minting and update agreed others are still under discussion quality of resolution audits can be requested 16 / 21

17 Sharing Data in Research and the data sharing of early results requires a reliable framework of trust transparent and standardized policies registration for referable data strong coupling between data and metadata stable references but also a review procedure to delete data PIDs can be the pivot to fulfil these requirements 17 / 21

18 and the Enhance PIDs with policies for sharing data: stable references transparent embargo and deletion rules transparent provenance direct access to data and metadata 18 / 21

19 and the flexible rules for data registration granularity performance of resolution and minting depending on needs for speed and policy use of PID Info Types as additional metadata stored in the PID database intended to be directly accessible independent of any redirection 19 / 21

20 Types and the are additional metadata stored in the PID database intended to be directly accessible independent of any redirection typical cases are checksum mime type (incl. version) embargo time expiration date add. metadata file basic Dublin Core 20 / 21

21 digital objects shared with other scientists for investigation have fine granularity use cases are single experiments simulation output and/or parameter sets single files, tables, pictures, single scanned pages or video/audio sequences snapshots of sensor outputs (dynamic data) software and software versions in some cases these sets of digital objects are highly structured and accessible by parameterized services here also templates or fragment identifiers can be a solution and the 21 / 21