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The hexagonal architecture, or ports and adapters architecture, is an architectural pattern used in software design. It aims at creating loosely coupled application components that can be easily connected to their software environment by means of ports and adapters. This makes components exchangeable at any level and facilitates test automation ...
Robert Cecil Martin (born 5 December 1952), colloquially called "Uncle Bob", [3] is an American software engineer, [2] instructor, and author. He is most recognized for promoting many software design principles and for being an author and signatory of the influential Agile Manifesto .
Efferent coupling is a coupling metric in software development.It measures the number of data types a class knows about.. This includes inheritance, interface implementation, parameter types, variable types, and exceptions.
Martin defines a responsibility as a reason to change, and concludes that a class or module should have one, and only one, reason to be changed (e.g. rewritten). As an example, consider a module that compiles and prints a report. Imagine such a module can be changed for two reasons. First, the content of the report could change.
A non-anemic rewrite of the above class could look like the following. The business concerns are now handled in the domain object, while the architecture can be more domain-agnostic. This allows the program to assume certain attributes are true about objects without implementing validity checks elsewhere within the architecture.
Martin Myles Filler (born September 17, 1948) is an American architecture critic. He is best known for his long essays on modern architecture that have appeared in The New York Review of Books since 1985, and which served as the basis for his 2007 book Makers of Modern Architecture, published by New York Review Books.
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The entity–control–boundary approach finds its origin in Ivar Jacobson's use-case–driven object-oriented software engineering (OOSE) method published in 1992. [1] [2] It was originally called entity–interface–control (EIC) but very quickly the term "boundary" replaced "interface" in order to avoid the potential confusion with object-oriented programming language terminology.