REQ-FUN-133

Three-point duration estimates on activity (PERT)

ID
REQ-FUN-133
Category
Functional Requirements
Status
approved
Priority
P1
Created
2026-05-11T19:30:00.000Z
Approved
2026-05-11T21:07:00.000Z
Updated
2026-05-11T21:07:00.000Z

What

Optional duration_optimistic, duration_most_likely, duration_pessimistic on activity. PERT expected = (O + 4M + P) / 6; std = (P - O) / 6.

Why

established project management guidelines Estimate Activity Durations output includes three-point estimates for activities with material uncertainty.

How

Schema migration adds optional fields. PERT expected computed on read. REQ-FUN-103 critical-path consults PERT when present.

Done when

Activity CRUD supports the three new fields; PERT expected computed and surfaced; Gantt confidence band rendered.

Out of scope

Monte Carlo simulation.

established project management guidelines Mapping

Primary Knowledge Area
Schedule Management
Secondary KAs
Risk Management
Primary Process Group
Planning
established project management guidelines Deliverable
Schedule Baseline

Three-point PERT estimates are the established project management guidelines Estimate Activity Durations output for activities with material uncertainty.