REQ-FUN-134
Estimate basis fields (cross-cutting: duration, cost, resource)
What
estimate_basis enum + estimate_rationale text on activity, budget allocation, resource_requirement. Enum: analogous, parametric, expert, three-point, bottom-up, other.
Why
established project management guidelines names Basis of Estimates as an output of every Estimate process. Cross-cutting Gap in Schedule, Cost, Resource KAs.
How
Schema migration adds the two fields; reports surface basis as a column.
Done when
Three entity types accept the new fields; relevant reports surface basis.
Out of scope
Required-field enforcement (warned, not enforced for MVP).
established project management guidelines Mapping
Basis of Estimates is a established project management guidelines output of every Estimate-* process; cost-side primary with schedule/resource ties.