Full AACE discipline, industrialized: three data levels that challenge each other, every line explained and cited, versions diffed, parallel scenarios on one reference. The engine does the bookkeeping; you keep the judgement.
See the method See pricingClasses 5 to 3 with contingency and accuracy range built in, escalation, location factors, learning curves, TRL premiums — and the maturity module that determines the class your deliverables can defend (RP 18R-97), instead of declaring it.
cli explain justifies a price line by line; diff shows exactly what moved between two versions; the Basis of Estimate document writes itself from the same data.
Hand-written, compiled from a design-to-cost idea selection, or generated by the gap analysis of a revised P&ID/BOM — deltas per WBS node, significance verdicts, journaled retain/reject.
Fit parametric formulas on your own actuals (ParaCost), import ERP history into client cost books (Tier3) — review-gated, offline, and always winning over the published references when present.
Professional ($149/user/month) carries the full estimating chain; the Calibration subscription industrializes your level-3 base, quarter after quarter.
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