Source hierarchy
Current official authority records establish laws, rules, guidance, standards, program requirements, and public data within their stated scope. Current official organization sources establish public product or service positioning. Direct confirmation can clarify scope. Independent testing requires a disclosed method. Secondary reporting adds context but does not silently replace a primary source.
Market inclusion
An organization enters the maintained construction project, cost, field, and capital-program technology record when an approved official source supports a direct role inside the stated market boundary. Inclusion is not endorsement, and the maintained population is not claimed to be a complete global market.
Capability evidence
A documented capability means an approved official source supports relevant positioning. It does not establish depth, configured availability, implementation fit, independent performance, customer outcome, or conformity. Missing evidence remains not established rather than being converted into absent.
Comparisons
Comparisons begin with a buyer-defined decision boundary and identify operating role, documented overlap, differences, limitations, and questions for direct verification. They conclude with conditional fit, not a universal winner.
Change history
A material event needs a dated source, evidence class, factual summary, operating consequence, affected records, and editorial approval. The construction systems change ledger preserves sequence rather than invisibly overwriting prior information.
Persistent standard
This policy applies to reporting, organization records, comparisons, research, sponsored programs, corrections, and any future commonly owned products.