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Loose coupling occurs when the dependent class contains a pointer only to an interface, which can then be implemented by one or many concrete classes. This is known as dependency inversion . The dependent class's dependency is to a "contract" specified by the interface; a defined list of methods and/or properties that implementing classes must ...
Karl Edward Weick (born October 31, 1936) is an American organizational theorist who introduced the concepts of "loose coupling", "mindfulness", and "sensemaking" into organizational studies. He is the Rensis Likert Distinguished University Professor at the Ross School of Business at the University of Michigan. [1] [2]
Loose coupling is a system of software components that have little or no knowledge of the definitions of other components. Loose coupling may also mean: Loose coupling, applied to organizational settings by Karl E. Weick; Loose coupling in electronics, where an inductively coupled circuit has a low coupling coefficient
In its general form, the LoD is a specific case of loose coupling. The guideline was proposed by Ian Holland at Northeastern University towards the end of 1987, [1] and the following three recommendations serve as a succinct summary: [2] Each unit should have only limited knowledge about other units: only units "closely" related to the current ...
Logical coupling (or evolutionary coupling or change coupling) analysis exploits the release history of a software system to find change patterns among modules or classes: e.g., entities that are likely to be changed together or sequences of changes (a change in a class A is always followed by a change in a class B).
It promotes loose coupling by keeping objects from referring to each other explicitly, and it allows their interaction to be varied independently. [ 3 ] [ 4 ] Client classes can use the mediator to send messages to other clients, and can receive messages from other clients via an event on the mediator class.
Proponents of loose coupling system believe that the university's academic freedom and students' individual identity will be destroyed if administrators tighten up the loose coupling. However, Weick argues that the "unpredictability (of an organization) is insufficient evidence for concluding that the elements in a system are loosely coupled". [46]
The onion architecture proposed by Jeffrey Palermo in 2008 is similar to the hexagonal architecture: it also externalizes the infrastructure with interfaces to ensure loose coupling between the application and the database. [7] It decomposes further the application core into several concentric rings using inversion of control. [8]