DSI is the primary input to many tools for estimating software

cost. The term "delivered" is generally meant to exclude

non-delivered support software such as test drivers. However,

if these are developed with the same care as delivered

software, with their own reviews, test plans, documentation,

etc., then they should be counted. The "source instructions"

include all program instructions created by project personnel

and processed into machine code by some combination of

preprocessors, compilers, and assemblers. It excludes

comments and unmodified utility software. It includes jobcontrol language, format statements, and data declarations.