Schedule Validator
Benefits of Schedule Validator
Reliability
By flagging missing logic, constraints, and invalid dates, it ensures the schedule accurately reflects what’s actually planned rather than hiding problems behind artificial dates or overrides.
Early risk identification
Metrics like near critical path percentage, negative float, and network hotspots act as early warning signals before delays cascade into major impacts.
As-built integrity
Out-of-sequence tracking ensures the schedule stays aligned with how work is actually progressing, which is essential for accurate delay analysis and future project planning.
Critical path accuracy
Hard constraints, tasks riding the data date, and out-of-sequence activities can all disguise the true critical path. Catching these gives project managers a clear picture of what genuinely drives the completion date.
Appropriate detail level
The average value per activity and duration checks ensure the schedule is broken down enough to be manageable and trackable. Too little detail means poor control; the tool recommends keeping individual tasks under $50K–$75K in value.
Key Features of Schedule Validator
Missing Predecessor Logic
Tasks lacking a defined predecessor relationship
Missing Successor Logic
Tasks with no defined successor relationship
Open Finish
Tasks with no activity tied to their completion/finish
Open Start
Tasks with no activity tied to their start
Negative Lag
Successor activities starting before their predecessor finishes
Percentage of Relationships with Positive Lag
Too many lag-based relationships with no assigned scope
Finish-to-Start Relationships with Positive Lag
Unexplained time gaps between directly sequential tasks
Percentage of SS and FF Relationships
Overuse of start-to-start and finish-to-finish relationship types
Tasks Riding the Data Date
Tasks driven by the calculation date rather than logic
Hard Constraints
Fixed-date constraints (FOOB, SOOB, FOOA, SOOA, ALAP) that obscure the critical path
Soft Constraints
Arbitrary date constraints that override CPM logic
Total Float Greater than 50% of Remaining Duration
Excessive float suggesting missing successors or logic gaps
Average Value of Activities
High average cost per task indicating insufficient schedule detail
Negative Float
Activities behind schedule relative to a constrained completion date
Task Durations Greater than 12% of Project
Overly long tasks that are hard to monitor and control
Invalid Dates (Future Actual Dates)
Actual start/finish dates set in the future that override schedule logic
Critical Path Percentage
The proportion of tasks on the critical path
Near Critical Path Percentage
Tasks with minimal float that could quickly become critical
Number of Logic Ties
Average number of dependencies per task indicating schedule complexity
Network Hotspots
Tasks with significantly more logic ties than average
Out of Sequence
Activities performed differently from the planned schedule logic
Request a Free Consultation
"*" indicates required fields