Introduction
Writing clear and precise goods specifications is a critical component of successful supply agreements. Specifications serve as the foundation for supplier performance, cost estimation, and contract management. This practice note presents the golden rules for drafting goods specifications that balance technical requirements with commercial fairness, fostering innovation and competition while protecting buyer interests.
The golden rules for writing a goods specification in a Supply Agreement are clarity, precision, and balance: define requirements in functional and performance terms, avoid over-specification, and ensure fairness to suppliers while protecting buyer interests.
Golden Rules for Drafting Goods Specifications
1. Clarity and Precision
- State requirements clearly and logically – avoid vague or ambiguous terms.
- Use functional and performance criteria (e.g., “must withstand 200°C” rather than “made of stainless steel”) unless a specific technical requirement is essential.
- Ensure the specification is comprehensive enough for suppliers to cost accurately.
2. Balance Between Detail and Flexibility
- Do not over-specify – excessive detail may restrict competition and increase costs.
- Allow for alternative solutions that meet performance needs, encouraging innovation.
- Avoid unnecessary features that could exclude capable suppliers.
3. Fairness and Competition
- Specifications should promote broad competition by focusing on performance rather than brand names or proprietary designs.
- Provide equal opportunity for suppliers to propose compliant goods.
4. Context and End-Use
- Indicate the final use or application of the goods (e.g., “pipes for potable water supply”).
- Include delivery, packaging, and after-sales service requirements where relevant.
5. Measurable Standards
- Define quality benchmarks (ISO standards, industry norms, testing methods).
- Include inspection and acceptance criteria to avoid disputes later.
- Specify tolerances, dimensions, and performance ranges where applicable.
6. Contractual Integration
- Ensure the specification is consistent with the rest of the Supply Agreement (delivery terms, warranties, penalties).
- Treat the specification as a contract management tool – it will be used to monitor supplier performance.
Quick Comparison: Good vs. Poor Specifications
| Aspect | Good Specification Example | Poor Specification Example |
| Clarity | “Steel bolts, M12, tensile strength ≥ 800 MPa” | “Strong bolts” |
| Performance | “Pump must deliver 50 L/min at 3 bar” | “High-capacity pump” |
| Fairness | “Equivalent to ISO 9001 certified quality” | “Brand X only” |
| Context | “For potable water supply, corrosion-resistant” | “General pipes” |
| Measurability | “Tolerance ±0.5 mm, tested per ASTM D638” | “Accurate dimensions” |
Risks of Poor Specification
- Supplier disputes due to unclear requirements.
- Higher costs from over-specification or restricted competition.
- Non-compliance if performance criteria are missing.
- Operational failures if end-use context is not defined.
Conclusion
Clear, balanced, and measurable supply specifications are essential for successful procurement. By following these golden rules, organizations can reduce disputes, encourage competition, and ensure goods meet their intended purpose.
References and Further Information
- Specifications.doc. https://elearning.un.org/CONT/GEN/CS/The_Fundamental_of_Procurement/m03downloads/resources/Good Practices for Developing Specifications.pdf
- https://www.treasury.gov.za/espf/LinkedDocuments/S3(3.1.4) SPF GPG – Collect, Document and Review Technical Specifications.pdf
- https://www.buyingfor.vic.gov.au/specification-writing-goods-and-services-guide
Disclaimer
This practice note is intended for informational purposes only and does not constitute legal or professional advice. Readers should consult qualified professionals for advice tailored to their specific circumstances.