Each category starts at 100. Every finding applies its severity base weight plus a logarithmic volume adjustment. A single issue matters, while very large counts do not overwhelm every other signal.
For each category: round(100 − sum of its finding penalties), with a minimum of zero. Then combine those rounded category scores using the weights below and round the weighted sum. Empty categories score 100. The demo, homepage and exports share the same input version and calculation.
PROFESSIONAL BOUNDARY
A quality indicator—not certification
The score supports triage and consistent review. It does not certify contractual compliance, determine delay entitlement, replace a controlled CPM recalculation, or replace professional planning judgement.
WEIGHTING
Severity and category weights
Finding severity
critical14
high9
medium5
review2
Schedule category
logic22%
float18%
constraints13%
progress18%
durations12%
relationships17%
STANDARDS CONTEXT
Principles considered by the methodology
DCMA 14-Point Schedule Assessment concepts
GAO Schedule Assessment Guide principles
AACE recommended practices for schedule quality and update review
References describe methodological context only. PlanProof does not claim endorsement, affiliation, or automatic compliance with any organisation, guide, contract, or owner specification.
CHANGE HISTORY
Scoring model revisions
v1.226 Sep 2026
Introduced severity and category weighting published below
Added preserved score recalculation history
Added schedule evidence snapshots for update intelligence
v1.123 Sep 2026
Expanded validation to 20 deterministic checks
Added six category scores and activity-level evidence
v1.020 Sep 2026
Initial PlanProof health score and XER validation model