Advanced Approach to Information Security Management System Model for Industrial Control System

Table 3

The example of recommended extracting items from IEC 61511.

	Recommended extracting items
IEC 61511	The safety requirements shall be derived from the allocation of safety instrumented functions and from those requirements identified during safety planning.
	The need for a factory acceptance testing should be specified during the design phase of a project.
	Installation and commissioning planning shall define all activities required for installation and commissioning.; The planning shall provide the following: (i) the installation and commissioning activities; (ii) the procedures, measures, and techniques to be used for installation and commissioning; (iii) when these activities shall take place; (iv) the persons, departments, and organizations responsible for these activities.; Installation and commissioning planning may be integrated in the overall project planning where appropriate.
	The validation of the safety instrumented system and its associated safety instrumented functions shall be carried out in accordance with the safety instrumented system validation planning.
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	Discrepancies between expected behaviour and actual behaviour of the SIS shall be analysed and, where necessary, modifications made such that the required safety is maintained. This shall include monitoring the following: (i) the actions taken following a demand on the system; (ii) the failures of equipment forming part of the SIS established during routine testing or actual demand; (iii) the cause of the demands; (iv) the cause of false trips.
	The procedures shall include a clear method of identifying and requesting the work to be done and the hazards which may be affected (modification and decommissioning).
	Modification shall be performed with qualified personnel who have been properly trained. All affected and appropriate personnel should be notified of the change and trained with regard to the change.