Data quality monitoring for the CMS resistive plate chamber detector

Resistive Plate Chambers (RPCs), with their excellent time resolution (~ 2 ns), were chosen as dedicated muon trigger detectors for the CMS experiment. RPCs fulfill the job of muon identification, estimate the momentum and unambiguously assign bun ch crossing. The critical tasks of monitoring detector performances, debugging hardware, and certifying recorded data are carried out by the RPC Data Quality Monitoring (DQM) system. We here describe the structure, functionalities, and performances of the DQM applications for the CMS RPC detector.