for content derived from the television series and the theatrical films is "in-universe", which means that the information will be written from the point of view of an archivist at the Memory Alpha library facility. This information is the total extent of the canon on the site. "Supplementary" information would be the info derived from other, Memory Alpha approved sources. "Supplementary" information will be written from a "real-world" point of view, and while it may be considered "non-canon" on this site, it does add to the overall richness of the Star Trek franchise.