ArchitectureBlueprintRTAGreport-LCGApplicationsArea-Cern.doc

Report of the LHC Computing Grid Project Architecture Blueprint RTAG John Apostolakis, Guy Barrand, Rene Brun, Predrag Buncic, Vincenzo Innocente, Pere Mato, Andreas Pfeiffer, David Quarrie, Fons Rademakers, Lucas Taylor, Craig Tull, Torre Wenaus (Chair) CERN Final Version (1.3) – 9 October 2002  Editing History Draft 0.0, August 8, T. Wenaus: First draft Draft 0.1, August 12, T. Wenaus: Changes and additions in light of first discussions on draft Draft 0.2, August 20, V. Innocente: Major changes and additions particularly in ch 5,6 Draft 0.3, August 21, T. Wenaus: Minor editing Draft 0.4, August 25, V. Innocente: Major additions in ch 5,6, minor changes in 7 Draft 0.5, September 5, T. Wenaus: Minor editing Draft 0.6, September 10, P. Mato: Minor changes, additions, diagrams and some section re-structuring Draft 0.7, September 30, T. Wenaus: Various editing. ALICE memo and a response added as appendices. New version of domain diagram from Pere. Draft 0.8, October 1, T. Wenaus: Various editing. Executive summary added. Changes in 6.6 (component configuration) and in distributed operation text, some text from Craig and John. Scope statement modified. Draft 0.9, October 2, T. Wenaus: Minor modifications in light of discussion. Added new AIDA recommendation section from Pere. Added recommendation on follow-on RTAG on analysis including distributed aspects. Section 6.7.1 ‘Interface with the Grid’ smoothed out. Draft 1.0, October 4, T. Wenaus: Minor editing. Sched/resources material introduced as separate spreadsheet, currently http://lcgapp.cern.ch/project/blueprint/BlueprintPlan.xls Draft 1.1, October 4, T. Wenaus: Summary text and chart added to sched/resources section. Draft 1.2, October 7, T. Wenaus: Added recommendations on ‘foundation and utility libraries’ and ‘physics interfaces’ projects. Changes in light of reader input: added ‘use of ROOT’ as recommendation for clarification; cleanup to where product recommendations are made; changes to address confusion o