Section 2 Performance requirements
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Naval Ships, January 2023 - Volume 2 Machinery and Engineering Systems - Part 9 Electrotechnical Systems - Chapter 8 Programmable Electronic Systems - Section 2 Performance requirements

Section 2 Performance requirements

Parent topic: Chapter 8 Programmable Electronic Systems

2.1 Performance requirements

2.1.1 The design, construction and operation of programmable systems shall employ human-centred activities.

2.1.2 The required level of safety shall be realised by appropriate activities throughout the equipment lifecycle.

2.1.3 The Programmable Electronic Systems shall be arranged such that the configuration is protected against unauthorised or unintended change.

2.1.4 Where applicable, the synchronisation of date and time stamping between separate equipment should be considered.

2.1.5 There shall be no degradation of the sub-system functionality when integrated into a larger system.

2.1.6 Programmable electronic systems shall maintain specified levels of performance in operation, and where necessary, under fault conditions.

2.1.7 Systems shall be readily usable under all intended operating conditions and shall support effective and efficient operation. Adequate safeguards against incorrect operation shall be provided.

2.1.8 The systems’ repeatability and accuracy shall be adequate for the proposed use and shall be maintained at their specified value during their expected lifetime and normal use.

2.1.9 Program and data held in the system shall be protected from corruption by loss of power.

2.1.10 The Programmable Electronic Systems configuration shall be identified and controlled throughout the lifecycle.

2.1.11 System design shall take account of any constraints or limitations imposed due to equipment or machinery.

2.1.12 Failure of one part of the integrated system shall not affect the functionality of other parts except for those functions directly dependent on the defective part.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.