This is the typical location where source code is placed for your
testing subject.  Source code may be segmented by version using the
standard v1 through vK (K being the largest/last version in the
sequence) to separate an evolutionary group of source code for
the test subject.  This evolution could be time-based or it could
also be different faults or types of faults inserted into a common
code base.  See the specifics of the preparer's handbooks in the
SIR for guidance on how to arrange your source code collection.
