Item：system or array of systems or a function on vehicle level to which ISO26262 is applied.
System：Combination of components interacting to carry out a defined functional purpose.
Component：Independent physical element sold as a product to the customer
Verification：Determination of completeness and correct specification or implementation of requirements from a previous phase.
Validation：Assurances，based on examination and test，that the safety goals are adequate and have been achieved with a sufficient level in integrity.
Verification Review：Verification activity to ensure that the result of a development activity fulfils the project requirement, or technical requirements, or bolt.
Confirmation review：Confirmation that a work product (3.185) provides sufficient and convincing evidence of their contribution to the achievement of function safety considering the corresponding objectives and requirement of ISO26262
Safety Audit：Examination of an implemented process with regard to the process objectives
Safety Assessment：Examination of whether a characteristic of an item or element achieves the ISO 26262