# Commission Implementing Regulation (EU) No 402/2013 of 30 April 2013 on the common safety method for risk evaluation and assessment and repealing Regulation (EC) No 352/2009 (Text with EEA relevance), Division 2.1.2: The system definition shall address at least the following issues:

Extent: E+W+S+N.I.

(a)system objective (intended purpose);
(b)system functions and elements, where relevant (including human, technical and operational elements);
(c)system boundary including other interacting systems;
(d)physical (interacting systems) and functional (functional input and output) interfaces;
(e)system environment (for example energy and thermal flow, shocks, vibrations, electromagnetic interference, operational use);
(f)existing safety measures and, after the necessary relevant iterations, definition of the safety requirements identified by the risk assessment process;
(g)assumptions that determine the limits for the risk assessment.

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Source: https://www.legislation.gov.uk/eur/2013/402/annex/I/division/2/division/2.1/division/2.1.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-402/annex-I/division-2/division-2.1/division-2.1.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.