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Definitions of Object Oriented Programming

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Definitions of Object Oriented Programming

(These definitions are for reference. Musicians learning OOP may skip them. -> go back to Object Oriented Programming )

Here are two computer-science descriptions of Object-Orientation extracted from the "official" Object-Orientation FAQ:

What Is Object-Orientation? A High-Level View.

Object-orientation is a new technology based on objects and classes. It presently represents the best methodological framework for software engineering and its pragmatics provides the foundation for a systematic engineering discipline. By providing first class support for the objects and classes of objects of an application domain, the object-oriented paradigm precepts better modeling and implementation of systems. Objects provide a canonical focus throughout analysis, design, and implementation by emphasizing the state, behavior, and interaction of objects in its models, providing the desirable property of seamlessness between activities. (

What Is Object-Orientation? A Low-Level View.

Object-orientation is the use of objects and classes in analysis, design, and programming. The use of objects distinguishes object-orientation from other techniques such as traditional structured methods (process-based: data and function are separate) or other techniques such as knowledge based systems (logic progamming, rules: Prolog) or mathematical methods (functional programming: fp, ML, Haskell). (

Two Technical Definitions

Definitions of Object-oriented programming and Object-oriented design after:
Booch, G., 1994. Object-oriented Analysis and Design. With Applications. Benjamin/Cummings Publishing Company, Inc.,
quoted from Müller 1997

Object-oriented programming is a method of implementation in which programs are organized as cooperative collections of objects, each of which represents an instance of some class, and whose classes are all members of a hierarchy of classes united via inheritance relationships.

Object-oriented design is a method of design comparsing the process of object-oriented decomposition and a notation for depicting the logical and physical as well as static and dynamic models of the system under design..

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