The logged data from the sensors on board the ship is picked up by software designed for the purpose.
The ship will normally be equipped with an automation system which is used to monitor all input from sensors on the ship during operation.
The data logging software is connected to the automation systems and will pick up the relevant data for the performance system.
The data is logged on disks and sent to shore for analysis.
To develop the system further to an auto logging system, the logged data can be accessed on board by an online performance system or from shore
via a satellite link.
The data can be stored in a database on board.
By request from the user selected data can be withdrawn from the system for analysis or exported to a performance reporting tool.