An electronic traveler system for LSST camera assembly and testing

An electronic traveler system has been implemented for the LSST Camera. Its purpose is to guide execution of procedures on the hardware and associate any resulting test data, analysis results and configurations with the tested devices. The system is accessible from a web browser or via a REST API and uses a MySQL database to provide a history of the assembly hierarchy, hardware locations and test procedure instances, along with locations of the resulting test data. Components of the system are entirely experiment-independent with the exception of the Data Portal web application, which provides expert knowledge by querying the eTraveler database.