Formal logic, a rule describing a set of statements

Stereotype, a set of associated behaviors

Schema (Kant), in philosophy the referencing of a category to a sense impression through time

Ontology (computer science), a data model that represents the relationships of a set of concepts within a domain

Schema (Orthodoxy), a degree of Orthodox monasticism

Image schema, a recurring pattern of spatial sensory experience

Schema (psychology), a mental set or representation

XML schema, a way to define the structure, content and, to some extent, the semantics of XML documents

Schematic, a diagram that represents the elements of a system using abstract, graphic symbols

Z specification language, part of a formal specification

Axiom schema, in formal logic

Database schema (disambiguation)

Model or Diagram