Our Methodology

How We Validate Calculations

Every calculator on SupplyChainToolkit is built to strict accuracy standards. Here's how we ensure that:

1. Source Validation

Each formula is validated against authoritative sources including:

• ASCM (APICS): Supply Chain Operations Reference (SCOR) and CSCP curriculum
• CSCMP: Council of Supply Chain Management Professionals standards
• Academic research: Peer-reviewed journals in operations management
• Industry textbooks: Established supply chain management publications

2. Unit Testing

Every calculator undergoes rigorous unit testing with:

• Edge case handling (zero values, extreme ranges)
• Numerical precision verification (correct rounding, decimal places)
• Known good results from industry examples
• Verification against independently computed worked examples

3. Continuous Integration

All code changes go through automated testing before deployment:

• 100% test coverage on all calculation functions
• Linting and type-checking (TypeScript strict mode)
• Manual verification of example scenarios
• Review before release

4. Assumption Transparency

Every calculator page explicitly lists assumptions and limitations so you know when the calculation applies and when it doesn't. For example, EOQ assumes constant demand and reliable lead times — real-world conditions that may not match your situation.

Why This Matters

A wrong calculation can lead to overstocking, stockouts, or poor business decisions. We take accuracy seriously because your supply chain depends on it.

Found an Error?

If you find a calculation error or believe a formula is incorrect, pleaseemail us. We take accuracy feedback seriously and will investigate promptly.

Our Roadmap

As SupplyChainToolkit grows, we plan to expand our validation with:

• Third-party review of formulas
• Practitioner feedback and case study validation
• Expanded test coverage for edge cases
• Published validation reports showing accuracy benchmarks