schema
/ˈskiːmə/noun
(pl. schemata /-mətə/ 或 schemas)
1- technical a representation of a plan or theory in the form of an outline or model〈技〉（计划或理论的）纲要; 图解, 模型：
a schema of scientific reasoning.
科学推理的图示。
1.1
- Logic a syllogistic figure【逻】（三段论法的）格。
1.2
- (in Kantian philosophy) a conception of what is common to all members of a class; a general or essential type or form（康德哲学的）先验图式。
词源
late 18th cent. (as a term in philosophy)： from Greek skhēma 'form, figure'.