The concept defines the syntactic and semantic binding rules governing class methods within object-oriented programming theory. It establishes the formal mechanism by which class attributes are bound to instance contexts via a standardized parameter convention, distinguishing methods from static functions and instance properties within the object-oriented paradigm. This structure serves as the foundational contract for defining behavioral operations in classes, ensuring consistency in how object state is accessed and modified through the unified method invocation interface.
Prerequisite chain context: requires Python Class Definition Syntax.