I nformation S ystems and D ata A cquisition for ATLAS

1. Open Source software LCG application area The team Technology transfer What was achieved What is proposed Tasks Database Access LVL1 electronics ConditionsDB Interface to TDAQ Interface to DCS Wide access Calibration & Alignment Information Systemsand Data Acquisitionfor ATLAS • We’ve successfully set up all the activities planned; • Consolidation of responsibilities on the ATLAS/TDAQ community : • On the Online Bookkeeper, which is our full responsibility for more than 3 years • Making our group the official responsible of the coordination of the database effort between the ATLAS online and offline software and CERN/IT effort. • A full Conditions Database package has already been released, pointing to us the full responsibility for the Detector calibration and alignment databases. • Providing the necessary interfaces with the CondDB and the DCS and TDAQ systems. • More than 20 presentations in ATLAS and LHC meetings and 5 papers in Computing and HEP conferences DCS Athena TDAQ The team plans to continue contributing decisively to the advance of the knowledge in the domain of the information systems for HEP experiments, assuming an important role in the necessary developments for the success of the ATLAS experiment. Time varying data for the LHC experiments • The group associated with this proposal is today a main reference in all subjects related to the ATLAS databases at all levels, including the collaboration with the LCG (LHC Computing GRID) wide effort. The value of our proposals, the quality and innovative character of our work was evident in all conferences where it was presented. The generalized acknowledgment of our work brings with it a stronger responsibility towards the ATLAS collaboration. The main purposes of this proposal result directly from these responsibilities: • The database interface for calibration, alignment and detector control (ConditionsDB) including all interfaces for storing and distributed access both online and offline. • To provide persistency support to all control information from the DAQ system ("Online Bookkeeping" and "ConditionsDB Interface"). • Strengthen our participation on the "ATLAS data challenges", in particular in relation with data management aspects. • Development and test of the electronics for the ATLAS First Level Trigger, matching the needs of the ATLAS trigger electronics, in particular the "Muon Trigger to CT Processor“. Our software, developed for ATLAS is part of the LCG persistent framework We’re using standard GNU tools for a portable development strategy in order to make our applications reusable in any environment and platforms • Conditions Database general management system • General browser for LHC conditions data • Participation in the ATLAS Data Challenge • Maintaining, testing and optimization of the Online Bookkeeping (OBK) • Conditions Database Interface (CDI) to the TDAQ • Evaluation and study of the ATLAS detector control systems database • Design of part of the ATLAS muon to central trigger processor interface  Imagination for software and instruments