A method of installing a non metallic pipeline segment along with a tracer wire segment using a horizontal directional drilling process includes positioning a horizontal directional drilling machine in a selected position on one side of the obstacle. The evaluation includes finding a relationship between data input to the application and memory allocation requests made by the application. The connecting device saves a service type corresponding to the notified priority class. The electrically driven actuator receives a drive signal that controls the amount of deflection. Thereby, the second data can be stored without replacing the recording medium.