Basic Principles for Verifications and Tests

Any verification shall be planned. ISO 26262 requires at least verifications after any phase of the development cycle. The information flow in the figure above shows how it fits into a typical hierarchical design. 

1 The verification planning shall be carried out for each phase and subphase of the safety lifecycle and shall address the following 

NOTE 1 Methods for verification include review, walk-through, inspection, model-checking, simulation, engineering analyses, demonstration, and testing. Typically verification applies a combination of these and other methods 

EXAMPLE A verification environment can be a test or simulation environment 

NOTE 3 A regression strategy specifies how verification is repeated after changes have been made to the item or element. Verification can be repeated fully or partially and can include other items or elements that might affect the results of the verification 

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