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A computational object system must provide mechanisms for realizing behavior of requests. These mechanisms include definitions
of object state, definitions of methods, and definitions of how the object infrastructure is to select the methods to execute
and to select the relevant portions of object state to be made accessible to the methods. Mechanisms must also be provided
to describe the concrete actions associated with object creation, such as association of the new object with appropriate methods.
An object implementation—or implementation, for short—is a definition that provides the information needed to create an object
and to allow the object to participate in providing an appropriate set of services. An implementation typically includes,
among other things, definitions of the methods that operate upon the state of an object. It also typically includes information
about the intended types of the object.