Reliability (system)
1. "An attribute of any system that
consistently produces the same results, preferably meeting or exceeding its
specifications" Free
On-line Dictionary of Computing
2.
"In engineering in general, reliability is the capacity of a component or a
system of such components to perform as designed." Wikepedia
Robustness
1.
“... an ability to recover gracefully from the whole range of
exceptional inputs and situations in a given environment” Free
On-line Dictionary of Computing
2.
“In terms of computer software, refers to the resilience of the system when
under stress - for example, when running a large number of processes, or when
starved of memory or storage space, or when confronted with an application that
has bugs or is behaving in an illegal fashion….” Wikepedia