Chapter 2: The Scientific Potential of the Data Preservation in High Energy Physics „Prospects for the utility of the whole enterprise „Past: JADE+DIS+find others. „Examples of ŅGedanken experimentsÓ on archived data ŠI.e. where are the non-experimental weak points ŠQuantify what it needs to re-do the analysis ŠWhat the result would look like if some errors are reduced „Give 2-3 striking examples from each experiment: ŠA Measurement (strong coupling, branching ratio, jet cross sections) ŠA search for new physics ŠA complementary analysis or a combination with a future/existing project „A summary of policies/practices in other fields ŠExamples Precision analyses: treat sensitive cases ALEPH list of ŅembargoÓ analyses Investigations of discrepancies (Nutev 3sigma, re-analyses) Fixed target fermilab Separate Preservation from Access Examples of LASS k-beam Hadronic contribution to g-2 (Babar) 35 paper (open) for the archival 10-12 from H1 Tevatron b-physics area LEP examples (long tail) Analyses enabled by full precision/data sets/reprocessing HERA: jet analyses/alpha_s/instantons Babar example of a flagship measurement that is bound to happen in the archival mode Chapter 3: Experiments DP projects A: project/hardware/resources „The present computing model ŠDescription of data model ŠEvent size ŠData sample: events, size ŠMC simulation: size, production ŠReprocessing strategy ŠAnalysis resources ŠTeam/Person power „The archival system (description) ŠLevel (1 to 4) ŠDescription of the transition steps ŠTimescales ŠLifetime? ŠVirtualisation „The resources ŠPerson power for R&D Effort within the experiment: Organization of the effort External needs: peak R&D, data archivist ŠHardware requirements and Computing Center issues Archival strategy: what ŅbitsÓ will be ŅstoredÓ Costs of the data storage in the computing centers Investigate a few options: tapes preserving; disks; virtual machines Including access operations ŠData archivist requirements: daily/monthly/yearly tasks [steveÕs job announcement] Training procedure: part of the data archival preparation Shared job Permanent job? Tasks associated with the preservation model FTE estimation/sharing Chapter 3: Experiments DP projects B: governance, international scene „Organisation of the Physics Supervision (connection to DPHEP) ŠMembership, transition, timelines ŠFunctions of the Ņgovernance bodyÓ: supervise the archivists activity ŠAccess ŠMandate from the collaboration on data changes, archival system evolution ŠSelection committee for the archivist ŠInterface with the host laboratory: technical support „Guidelines for information publishing/disclosure ŠWhat will be really for public consumption (comments in notes/documentation) ŠConsistence across collaborations? Across time? „Costs/benefits statement ŠPhysics potential versus archival costs „Interface to DPHEP Š(input to Chapter 5 too) ŠCommunication and ressources from the experiments to DPHEP ŠLarger community and exchange, visibility for archivists „A more global aim: produce a template for an experiment to be part of DEPHEP (see later) Chapter 4: Inter-experiment R&D survey „DPHEP-RD1: Technology for Data Preservation-forum to facilitate R&D ŠVirtualization ŠMulti-core ŠValidation Suites? ŠSuper-structure for archival systems? „DPHEP-RD2: Outreach ŠStandard formats, tools, communication techniques „DPHEP-RD3: Extension of the public documentation ŠRecovery of paper material (with libraries/archives) ŠŅInternalÓ notes (search, understand, attach) Š(t)wikis (dark archive, embargo, snapshot, choice of material, structuring) ŠTalks (ingest, classify, search) ŠŅprivateÓ additional information paper-by-paper ŠFigures, Ntuples, mathematica, root, xml for outreachÉ (who does the stewardship?) „DPHEP-RD4: Standards ŠProcedures? Part of archivist job? Common formats? ŠStart from the outreach and work backwards (testbed) ŠWhat can DPHEP learn from the way ASTRO does it (cost/benefit invest now and preserve with less cost). Part of funding surge. Chapter 5: DPHEP „Modus Operandi Šmanagement definitions, meetings, reports „Connections levels ŠExperiments Supervisions committees => DPHEP ŠLaboratories Data Archive Team=> DPHEP ŠConnections from external HEP contributors ŠConnections to other fields NB: IVOA HEP contact person: Fabio Pasian, connect more organizations?) „Define/propose the funding model ŠPossible contributors ŠInvestigate funding programs USA Europe