Value management - Functional expression of the need and functional performance specification - Requirements for expressing and validating the need to be satisfied within the process of purchasing or obtaining a product; German version EN 16271:2012— 38 стр.
Dependability management - Part 3-15: Application guide - Engineering of system dependability (IEC 60300-3-15:2009); German version EN 60300-3-15:2009— 63 стр.