Chain of Responsibility

E173614

behavioral design pattern design pattern

Chain of Responsibility is a behavioral design pattern that decouples senders and receivers by passing a request along a chain of potential handlers until one of them processes it.

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All labels observed (3)

Label	Occurrences
Chain of Responsibility canonical	1
Chain of Responsibility pattern	1
chain-of-responsibility pattern	1

How this entity was disambiguated

This entity first appeared as the object of triple T1531325 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Chain of Responsibility
Context triple: [Design Patterns: Elements of Reusable Object-Oriented Software, describesPattern, Chain of Responsibility]

A. CSP (Communicating Sequential Processes)
CSP (Communicating Sequential Processes) is a formal model for describing and analyzing concurrent systems based on independent processes that interact solely through message-passing communication.
B. Human Chain
Human Chain is a late poetry collection by Nobel laureate Seamus Heaney that reflects on memory, mortality, and human connection with his characteristic lyrical clarity.
C. A Loop
A Loop is a modern streetcar route in Portland, Oregon, that provides circulator service through the central city and adjacent neighborhoods as part of the Portland Streetcar system.
D. Postel’s law
Postel’s law is a design principle in computing and networking that advises systems to be conservative in what they send and liberal in what they accept, promoting robustness and interoperability.
E. CSP
CSP is the commonly used abbreviation for the Conference of the States Parties, the main decision-making body overseeing implementation of the Chemical Weapons Convention.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Chain of Responsibility
Target entity description: Chain of Responsibility is a behavioral design pattern that decouples senders and receivers by passing a request along a chain of potential handlers until one of them processes it.

A. CSP (Communicating Sequential Processes)
CSP (Communicating Sequential Processes) is a formal model for describing and analyzing concurrent systems based on independent processes that interact solely through message-passing communication.
B. Human Chain
Human Chain is a late poetry collection by Nobel laureate Seamus Heaney that reflects on memory, mortality, and human connection with his characteristic lyrical clarity.
C. A Loop
A Loop is a modern streetcar route in Portland, Oregon, that provides circulator service through the central city and adjacent neighborhoods as part of the Portland Streetcar system.
D. Postel’s law
Postel’s law is a design principle in computing and networking that advises systems to be conservative in what they send and liberal in what they accept, promoting robustness and interoperability.
E. CSP
CSP is the commonly used abbreviation for the Conference of the States Parties, the main decision-making body overseeing implementation of the Chemical Weapons Convention.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	behavioral design pattern ⓘ design pattern ⓘ
advantage	increases flexibility in assigning responsibilities to objects ⓘ promotes single responsibility principle among handlers ⓘ reduces coupling between sender and receiver ⓘ supports dynamic changes to the chain of handlers ⓘ
alsoKnownAs	CoR pattern ⓘ chain-of-responsibility pattern ⓘ linked to: Chain of Responsibility
applicableWhen	handlers should be specified dynamically ⓘ more than one object may handle a request ⓘ the handler is not known a priori ⓘ
belongsTo	Gang of Four design patterns ⓘ linked to: Design Patterns: Elements of Reusable Object-Oriented Software
definesRoleOf	Client initiates the request to a handler ⓘ ConcreteHandler handles requests it is responsible for ⓘ Handler defines interface for handling requests ⓘ
describedIn	Design Patterns: Elements of Reusable Object-Oriented Software ⓘ
disadvantage	can be hard to debug due to indirection ⓘ may lead to long chains and performance overhead ⓘ no guarantee that a request will be handled ⓘ
hasCategory	behavioral pattern ⓘ
implementationDetail	chain can be implemented via linked references or collections ⓘ handlers often implement a common interface or abstract class ⓘ
intent	allow multiple objects a chance to handle a request ⓘ avoid coupling the sender of a request to its receiver ⓘ decouple senders and receivers of a request ⓘ
keyConcept	chain can be modified dynamically ⓘ client does not know which handler will process the request ⓘ handler can choose to handle or forward the request ⓘ handlers can be added or removed without changing client code ⓘ request is passed along the chain until handled ⓘ
keyOperation	handleRequest ⓘ
originatedFrom	work of Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides ⓘ
participant	Client ⓘ ConcreteHandler ⓘ Handler ⓘ
relatedTo	Command pattern ⓘ linked to: Command Composite pattern ⓘ Decorator pattern ⓘ linked to: Decorator Mediator pattern ⓘ
structure	chain of handler objects ⓘ each handler maintains a reference to the next handler ⓘ linked list of handlers ⓘ
typicalUseCase	GUI frameworks ⓘ authorization and authentication checks ⓘ event handling systems ⓘ logging frameworks ⓘ request processing pipelines ⓘ technical support escalation chains ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Design Patterns: Elements of Reusable Object-Oriented Software → describesPattern → Chain of Responsibility ⓘ

Chain of Responsibility → alsoKnownAs → chain-of-responsibility pattern ⓘ

linked to: Chain of Responsibility

Gang of Four design pattern → hasExample → Chain of Responsibility pattern ⓘ