(1) University of Glasgow, Kelvin Building, Glasgow G12 8QQ, Scotland.
Vetra is the LHCb data reconstruction project which emulates the performance of the
{\Te} readout board processing algorithms. This project is required for monitoring and
commissioning the LHCb silicon detectors. A bit-perfect emulation of the {\Te} processing
algorithms is performed. This project allows raw data (non-zero suppressed) to be
processed to produce the standard zero suppressed cluster data, used by the LHCb
reconstruction project Brunel.
The Vetra framework is used by the VELO and ST detectors in LHCb. This note provides a
general description of the Vetra framework but concentrates on the \V usage. Vetra
is used to monitor the performance of the detector and the data
acquisition board algorithms. The parameters that control the data acquisition boards are determined and
optimised using Vetra. The project is used widely in the VELO and is used for testbeam and laboratory studies,
including production testing for the modules.