Complex sentence: Barry Boehm's 1980s book "Software Engineering Economics" documents his Constructive Cost Model (COCOMO) relates software development effort for a program, in man-years T, to "source lines of code" (SLOC).
Split into simpler sentences: Barry Boehm's 1980s book "Software Engineering Economics" documents his Constructive Cost Model (COCOMO). It relates software development effort for a program, in man-years T, to "source lines of code" (SLOC).