safety critical system | has example systems that control industrial processes, vehicles, telecommunications networks, medical equipment and many consumer devices |  |
is a subtopic of 4.7 - Types of Requirements Document |  |
is a kind of system |  |
must have its requirements subjected to rigorous analysis and review |  |
should be precisely specified if it could jeopardize safety or the environment if it fails |  |
system | can have specification which is then implemented by a collection of components |  |
exists even if its components change over the course of time, or are replaced by equivalent components |  |
has scope |  |
has part component |  |
has part hardware |  |
has part module |  |
has part software |  |
has part subsystem |  |
is complex if its scope is broad |  |
is in a state until an event occurs that causes it to change state |  |
is divided up into subsystems |  |