Why should planning assumptions be documented?

Documenting initial planning assumptions creates a formal baseline for the project design. Because data center projects evolve over long timelines, clearly documented assumptions allow stakeholders to review, validate, and update design criteria when higher-fidelity information or refined business requirements become available.

Option A: Planning assumptions are preliminary estimates subject to validation, not permanent or unchangeable facts.

Option B: Commissioning is a critical quality assurance process that verifies physical operational performance and cannot be bypassed by documenting assumptions.

Option C: Documenting assumptions gives the project owner a structured framework to modify requirements systematically as business strategies shift.

- BICSI Data Center Design Consultant (DCDC) Manual, 2nd Edition, Chapter 2: Planning and Design Process, Section: Basis of Design (BoD).

- ASHRAE Guideline 0-2019: The Commissioning Process, Section 6: Owner's Project Requirements and Basis of Design.