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Editorial standards
How content on this site is researched, written, reviewed, and corrected.
How content is researched
We prefer primary sources: the original paper, standard, or documentation rather than a summary of it. Where a claim rests on a source, the text names it, and dates and attributions are checked before publication. When a historical claim is contested, we say so instead of picking the tidier version.
How content is written
Guides and articles are researched and drafted with AI assistance, then reviewed, tested, and edited by the named contributor before publication. Diagrams are designed to explain a mechanism and are checked against the text they accompany. Every piece carries a named author, and where a second person has reviewed it, the review is credited.
Corrections
Errors are corrected promptly. A substantive change updates the “Updated” date shown on the page; typographical fixes do not. If you find a mistake, write to hello@informationscience.ai with the page and the passage, and we will reply.
Paid and free content
Free content, including the Foundations pages and topic overviews, is complete on its own. It is not a teaser with the answers held back. Paid guides go deeper: longer treatment, worked examples, decision tables, and material you can reuse in your own design documents. Updates to a paid guide are included in the original purchase.
Independence
The site is funded by the sale of its guides and nothing else. We do not accept sponsored content or payment for recommendations. Where we name a product or vendor, it is because the concept needs an example, and the concept is explained first.
See also: About the publication and contributors.