Hard Constraints (DCMA Point 5 - "Hard Constraints" Assessment)
SSI Tools Counts:
Incomplete Tasks (not summaries and not zero duration milestones) using Must-Finish-On (MFO), Must-Start-On (MSO), Start-No-Later-Than (SNLT) and Finish-No-Later-Than (FNLT) constraint types. The Pass threshold is no more than 0% of the task counted in the population.
Note that “Soft” constraints: As-Soon-As-Possible (ASAP), As-Late-As-Possible (ALAP), Start-No-Earlier-Than (SNET), and Finish-No-Earlier-Than (FNET) do not count against your score.
This is a count of incomplete tasks with hard constraints in use. Using hard constraints [Must-Finish-On (MFO), Must-Start-On (MSO), Start-No-Later-Than (SNLT), & Finish- No-Later-Than (FNLT)] will prevent tasks from being moved by their dependencies and, therefore,prevent the schedule from being logic-driven. Soft constraints such as As- Soon-As-Possible (ASAP), Start-No-Earlier-Than (SNET), and Finish-No-Earlier-Than (FNET) enable the schedule to be logic-driven. Divide the total number of hard constraints by the number of incomplete tasks. The number of tasks with hard constraints should not exceed 5%.
Hard Constraint %= (Total # of incomplete tasks with hard constraints / Total # of incomplete tasks) ×100
