Precisionism is a philosophy held by tropers who, like Delusionists, pursue a middle ground between the attitudes of deletionism and inclusionism, and inclusionism and exclusionism. Precisionists argue that labels of "deletionist" and "inclusionist" hinder the development of precise policies regarding what should be in ATT, and often favor the use of precedents to establish trustworthy grounds for vetting articles. They are distinguished from Delusionists in that they may be more comfortable with being called "Deletionists", because they prefer clear and relatively rigorous standards for accepting articles, templates or other pages to the wiki.
Precisionists argue that the emphasis should not be on a blanket policy of including articles, nor a blanket policy of deleting or excluding articles, because neither philosophy evaluates the content of the actual articles, which is what's relevant. They are therefore called Precisionists because they believe that articles should be precisely within policy, in terms of neutrality, verifiability, reliable sources, and notability, and whether they should be kept, changed, or removed entirely can only be decided on a case-by-case basis. Furthermore, when such decisions are made, policy should then be precisely clarified to avoid future disputes.