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Ad hoc code reuse has been practiced from the earliest days of programming.Programmers have always reused sections of code, templates, functions, and procedures. Software reuse as a recognized area of study in software engineering, however, dates only from 1968 when Douglas McIlroy of Bell Laboratories proposed basing the software industry on reusable components.
Composition over inheritance (or composite reuse principle) in object-oriented programming (OOP) is the principle that classes should favor polymorphic behavior and code reuse by their composition (by containing instances of other classes that implement the desired functionality) over inheritance from a base or parent class. [2]
In software engineering, the delegation pattern is an object-oriented design pattern that allows object composition to achieve the same code reuse as inheritance. In delegation, an object handles a request by delegating to a second object (the delegate). The delegate is a helper object, but with the original context.
It's nearly impossible to change code to match them later." [19] As listed near the end of coding conventions, there are different conventions for different programming languages, so it may be counterproductive to apply the same conventions across different languages. It is important to note that there is no one particular coding convention for ...
A study done by NASA showed that the putting the code into well-factored classes can double the code reusability compared to the code developed using functional design. [10] [11] One experiment showed that designs which access arrays sequentially, rather than randomly, result in fewer variables and fewer variable references. [12]
Domain engineering is designed to improve the quality of developed software products through reuse of software artifacts. [2] Domain engineering shows that most developed software systems are not new systems but rather variants of other systems within the same field. [3]
He participated in the design of multiple influential programming languages, particularly PL/I, SNOBOL, ALTRAN, TMG and C++. His seminal work on software componentization [ 2 ] and code reuse [ 3 ] [ 4 ] makes him a pioneer of component-based software engineering and software product line engineering .
In computer programming and software design, code refactoring is the process of restructuring existing source code—changing the factoring—without changing its external behavior. Refactoring is intended to improve the design, structure, and/or implementation of the software (its non-functional attributes), while preserving its functionality .