The Emergence Machine

Observer Pattern

abstract · Computing · Level 4 · E10

E10Institutions

Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.

Trace. Question. Emerge.

Emergence definition

observer-pattern requires design-pattern, structure.

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Wiktionary senses

External reference — all senses of the word “observer pattern” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.

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Source: Wiktionary — “observer pattern”. Content available under CC BY-SA 4.0.

Historical origin

Origin word
observer pattern
Origin language
English

Prerequisite chain

Possible path of this concept down to the fundamental substrate.

thisfoundationsL4L3L2L1L0Observer PatternDesign PatternSoftwareFormInformationProcessStructureActionChangeMatterEnergyPatternSpaceTimeE1 concrete → E14 abstract

Neighborhood

Direct prerequisites above, concepts that depend on this one below.

thisprerequisitesObserver PatternL4Design PatternL3SoftwareL3E1 concrete → E14 abstract

In other languages

Prerequisites

What you need to understand first.

  • Design Pattern L3 (requires)
    The observer pattern is a design pattern that establishes a subscription relationship where observers receive notifications when a subject changes.
  • Software L3 (requires)
    observer pattern builds on the concept of software