ANNEX
DRAFT GUIDELINES FOR ON-BOARD USE AND APPLICATION OF COMPUTERS
1 Scope
1.1 These guidelines are applicable where computer-based systems are used to perform essential functions, such as：
a) - propulsion, steering and manoeuvring
- navigation and communication
- cargo loading, discharging and control
- safety of passengers and crew (e.g. fire safety systems and general alarm);
and
b) essential calculations, such as ship's stability and loading.
1.2 The guidelines are not applicable to equipment or systems for which relevant specific Performance Standards of the Organization exist.
1.3 These guidelines should also be applied to non-essential functions where loss of control could result in serious damage to the ship or its machinery, or serious injury to personnel, e.g. explosion of domestic water boilers.
2 Definitions
In addition to the definitions in the SOLAS Convention the following are necessary for these guidelines：
2.1 Computer
A programmable electronic device for storing and processing data, making calculations, or performing control.
Notes：
1. For the purposes of this document the term "computer" means a "digital computer",
2. A computer may consist of a stand-alone unit or may consist of several interconnected units and includes any progrmnmable electronic system (PES), including main-frame, mini-computer or micro-computer.
