In the traditional method, each cell in the main area of the scoresheet represents the "lifetime" of an offensive player, from at-bat, to baserunner, to being put out, scoring a run, or being left on base.
To collect and distribute the data, Project Scoresheet needed a method of keeping score that could be easily input to a computer.
This limited the language to letters, numbers, and punctuation (no baseball diamonds or other symbols not found on a computer keyboard).
The corresponding system was developed by baseball authors and statisticians including Craig Wright and Gary Gillette.
This saves considerable space on the card (since no boxes are left blank) and reduces the likelihood of a game requiring a second set of scorecards.
The second major change is the detailed offensive and defensive in/out system, which allows the scorekeeper to specify very specifically when players enter and leave the game.