It is possible that those concepts were so low in importance that they didn't make the summaries or keywords on which this data is based. It is also possible that other words were used by those authors to convey the concepts. Also, those words may be used in the books, but omitted from the summaries. In those cases, the books don't show up in the results above. The predominant uses of it in the search results are related to software reuse, or to graphic user interface design.
None mention accessibility or usability.
None mention accessibility or usability. Conclusions The Education and Outreach group of the W3C Web Accessibility Initiative has an opportunity and obligation to influence authors and publishers to include accessiblity in their books. The increasing emphasis through policy and legislation world-wide, should encourage authoring tool builders, and the authors and publishers who write about them to include accessibility in their next revisions.