
360 The Method Framework for Engineering System Architectures
e following classification hierarchy of quality characteristics is intentionally quite large.
While no list can be truly exhaustive, we provide a fairly complete list. However, these charac-
teristics will never be equally important on all projects, and no system or individual architectural
component is ever likely to need quality requirements for all of them. e reason why the fol-
lowing hierarchy is so complete is that it should be easier for the requirements engineers and
architects to identify the relevant ones from the given hierarchy than it will be for them to deter-
mine ...