System Testing
System testing is
testing conducted on a complete, integrated system to evaluate the
system's compliance with its specified requirements. System testing
falls within the scope of black box testing, and as such, should
require no knowledge of the inner design of the code or logic.
As a rule, system testing takes, as its input, all of the "integrated"
software components that have successfully passed integration testing
and also the software system itself integrated with any applicable
hardware system(s). The purpose of integration testing is to detect any
inconsistencies between the software units that are integrated together
(called assemblages) or between any of the assemblages and the
hardware. System testing is a more limiting type of testing; it seeks
to detect defects both within the "inter-assemblages" and also within
the system as a whole.
System testing is actually done to the entire system against the
Functional Requirement Specification(s) (FRS) and/or the System
Requirement Specification (SRS). Moreover, the system testing is an
investigatory testing phase, where the focus is to have almost a
destructive attitude and test not only the design, but also the
behaviour and even the believed expectations of the customer. It is
also intended to test up to and beyond the bounds defined in the
software/hardware requirements specification(s).
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