Cost Certainty vs Design Flexibility
Freeze only cost-driving interfaces at each approval gate, documenting controlled flexibility boundaries to satisfy audit and cost-reporting requirements.
CyberTRIZ analysis · GreenFieldIndustrialProjects contradiction GFP008 · one of 8,235 worked contradictions published by CyberTRIZ.AI
Regulations
Business Context
Reliable cost estimates and commercial commitments require stable scope and design information, while projects need flexibility to incorporate improved engineering, vendor information, site data, and changing business requirements.
Green Field Industrial Projects TRIZ Resolution
Freeze cost-driving interfaces progressively rather than freezing the entire design simultaneously. Maintain controlled flexibility in elements whose modification does not materially disturb committed quantities, contracts, or interfaces.
Applicable TRIZ Principles
Principle 1 – Segmentation separates stable cost-driving elements from flexible design details.
Principle 15 – Dynamics preserves controlled adaptability where it remains economically useful.
Principle 35 – Parameter Changes limits allowable variation to defined design parameters.
Expected Outcome
Greater cost predictability
Preserved engineering flexibility
Fewer disruptive changes
Better design maturity at commitment
Decision Indicators
Cost certainty requires premature design freeze.
Minor design changes generate disproportionate commercial impacts.
Teams resist valuable improvements because budgets are fixed.
Estimates remain unstable because major interfaces are unresolved.
Design flexibility continues after critical procurement commitments.