Start with scope
Compare two or more options on a fair, like-for-like basis and explain the conditions under which differences matter.
How we structure the research
- Identify the exact alternatives and versions
- Use the same units, scope and operating conditions
- Separate measured evidence from manufacturer claims
- Record exceptions and the source date
Choose suitable sources
Use official documentation, original research and relevant technical references. State versions, dates, units and important conditions alongside the claim. Manufacturer documentation can establish what that manufacturer specifies; broader claims may require independent evidence.
Distinguish evidence and illustration
Diagrams on the site may simplify a concept. They are illustrative, not test records, engineering drawings or certification evidence. Examples are not customer case studies unless clearly substantiated.
Keep uncertainty visible
Show assumptions and exceptions. Link to the source that supports a claim, and state when evidence is incomplete or conflicting.