Clause 9

Question 1

Item boundary

Answer 1

The item boundary distinguishes the item from its operational environment. The description of the item boundary can include interfaces with other items internal to the vehicle and/or with E/E systems external to the vehicle.

Question 2

item functions

Answer 2

This describes the intended behaviour of the item during the lifecycle phases [e.g. product development (testing), production, operations and maintenance, decommissioning] and includes the vehicle functionality that is realized by the item.

Question 3

(item) preliminary architecture.

Answer 3

A description of preliminary architecture can include identification of components of the item and their connections, and external interfaces of the item.