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The chain-of-responsibility pattern is structurally nearly identical to the decorator pattern, the difference being that for the decorator, all classes handle the request, while for the chain of responsibility, exactly one of the classes in the chain handles the request. This is a strict definition of the Responsibility concept in the GoF book ...
In business and project management, a responsibility assignment matrix [1] (RAM), also known as RACI matrix [2] (/ ˈ r eɪ s i /; responsible, accountable, consulted, and informed) [3] [4] or linear responsibility chart [5] (LRC), is a model that describes the participation by various roles in completing tasks or deliverables [4] for a project or business process.
In recent years, the chain of responsibility concept has been widely used as a basis for the reform of transport laws in the State of Victoria.A major review of policy and legislation in that State, the Transport Legislation Review, has led to the concept being adapted for use in a number of new statutes including the Rail Safety Act 2006, the Bus Safety Act 2009 and the Marine Safety Act 2010.
In management or leadership within an organisation, it involves a manager aiming to efficiently distribute work, decision-making and responsibility to subordinate workers in an organization. Delegation may result in creation of an accountable chain of authority where authority and responsibility moves down in an organisational structure . [ 2 ]
For example, to undo a delete selection command, the object may contain a copy of the deleted text so that it can be re-inserted, if the delete selection command must be undone. Note that using a separate object for each invocation of a command is also an example of the chain of responsibility pattern. The term execute is also ambiguous.
Example of a functional hybrid organizational chart. An organizational chart, also called organigram, organogram, or organizational breakdown structure (OBS), is a diagram that shows the structure of an organization and the relationships and relative ranks of its parts and positions/jobs. The term is also used for similar diagrams, for example ...
The bridge uses encapsulation, aggregation, and can use inheritance to separate responsibilities into different classes. When a class varies often, the features of object-oriented programming become very useful because changes to a program's code can be made easily with minimal prior knowledge about the program. The bridge pattern is useful ...
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.