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Data Curation & Preservation

Data Curation & Preservation. Thursday 2011-05-19T07:30:00 (UTC) Arnold Rots. Program. Norman Gray: Long-term URIs in astronomy Sébastien Derriere: SIMBAD URIs Arnold Rots & Alberto Accomazzi : Persistent Data Identifiers in Astronomy Pierre Le Sidaner : OAIS and IVOA

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Data Curation & Preservation

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  1. Data Curation & Preservation Thursday 2011-05-19T07:30:00 (UTC) Arnold Rots

  2. Program • Norman Gray: Long-term URIs in astronomy • Sébastien Derriere: SIMBAD URIs • Arnold Rots & Alberto Accomazzi: Persistent Data Identifiers in Astronomy • Pierre Le Sidaner: OAIS and IVOA • José Ruiz: Update on Wf4Ever Data Curation & Preservation - summary

  3. Persistent Identifiers (main topic) • Norman and Arnold emphasized the need for persistent URIs/identifiers for datasets • The IVOA identifiers issued under ADS naming authority work and provide the right set of characteristics: unique, persistent, verifiable, resolvable– ivo://ADS/Sa.CXO#obs/123 • Need to establish formal registry to replace current more informal ADS operation • Alternative is to use DOIs through DataCite; this would provide registry functions • Both approaches offer same functionality; this will be worked out and we expect no problems either way Data Curation & Preservation - summary

  4. SIMBAD URIs • Sébastien presented a review of the issues involved in assigning URI-type identifiers to objects in SMBAD • Objects have multiple identities • The dynamic nature of the SIMBAD records presents a particular problem: • Objects merge • Objects split • Note that this is closely related to the problems associated with crossmatch algorithms: it is not absolute, but represents a probability – which may change at any time as new information becomes available Data Curation & Preservation - summary

  5. OAIS and Similar Standards • Pierre urged archives participating in the IVOA to comply with OAIS archiving models • Noted importance of provenance (including context) information and authentication • Noted that IVOA protocols contain information on exchange format, but not the native format of the data • And urged to move toward certification as trusted repositories, following the auditing standards currently being developed; this has been mentioned before and my guess is that our funding agencies will start requiring it at some point – may as well be proactive Data Curation & Preservation - summary

  6. Wf4Ever • José presented an update on Workflows Forever • As digital collaborations are proliferating we need to get serious about curating and preserving collaborative digital research objects • Preservation of workflows is a complex matter • Publication of research objects is desirable, but how? Data Curation & Preservation - summary

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