Australian Product Guide uses a source hierarchy because not every source is equally useful for every claim. Exact product identity, Australian relevance and the authority of the source matter more than the number of links collected.
Source hierarchy
- Manufacturer, manual and support material for stable product specifications, compatibility, dimensions, features and official model information.
- Exact Australian retailer or manufacturer-direct listings for seller-specific availability, offer context and exact local product identity.
- Credible independent evidence where it adds useful performance context, comparative insight or verification that primary sources do not provide.
- Secondary sources for discovery or context, with consequential claims verified against stronger evidence where possible.
Exact model and variant identity
Australian Product Guide avoids assuming that a similarly named overseas model, generation or retailer listing is the same Australian product. Where exact identity is uncertain, the uncertainty is disclosed or the claim is withheld.
Retailer information
Retailer links can be exact product destinations or transparent model-specific search fallbacks. An exact direct link is used only when Australian Product Guide has sufficient confidence in the product or variant match. Seller, stock, delivery and price remain controlled by the retailer and can change.
Amazon Australia content
Amazon Program Content is used only through mechanisms permitted by the applicable Amazon Associates programme terms and policies. Australian Product Guide requires a verified product or variant match and a recorded usage basis before Amazon product content is published. Australian Product Guide does not guess Amazon product identifiers or scrape Amazon product pages.
Evidence freshness
Stable specifications and volatile commerce facts are treated differently. Product generations, compatibility, retailers, prices, promotions and availability can change faster than dimensions or basic features, so consequential purchase details should be confirmed with the current manufacturer or retailer source.
When evidence is missing
Missing evidence is not filled with an invented score or assumption. Australian Product Guide may retain a product as a research starting point while clearly limiting the claims made about it until stronger evidence is available.