Technology & Testing Core A1 · Official standard Platform: Web

DOM

The Document Object Model (DOM) turns a document into a tree of objects called nodes. Programs use its standard tools to read and change the document.

See how it works
You might call it Document Object Model

See how it works

Original worked exampleDOM

Another example

A browser reads HTML with a button and a status area. Code uses DOM tools to find the nodes, handle a click, and change the text. The DOM is not the original HTML text or a screenshot.

Main parts

  1. 01document
  2. 02node tree
  3. 03events and mutation

Use it when

Use this term for document nodes, events, moving through the tree, changes, or browser document tools.

Do not use it when

Do not call a framework's virtual tree or an HTML string made on a server the browser DOM.

Name used in code

Document → Node tree → events and mutations

Before you ship

Check the runtime and version, integration limits, dependencies and licenses, and platform support. Verify security, failure, speed, monitoring, deploy, support owner, upgrade path, and rollback.

Request you can copy

Outcome: Use or review DOM as a technical building block that the team can maintain. User context: A browser reads HTML with a button and a status area. Code uses DOM tools to find the nodes, handle a click, and change the text. The DOM is not the original HTML text or a screenshot. Technology or engineering concept: DOM. Why it fits: Use this term for document nodes, events, moving through the tree, changes, or browser document tools. Do not use it when: Do not call a framework's virtual tree or an HTML string made on a server the browser DOM. Engineering fit: Define where it runs and which version to use. Set its job, interfaces, data flow, dependencies, supported systems, security, and speed limits. Explain how it fits the current stack. Lifecycle safeguards: Check dependency health and licenses. Add monitoring and a fallback. Name the upgrade owner. Do not add a second tool for the same job without a measured benefit. Acceptance criteria: A small integration proves the needed behavior. Test compatibility, security, failure, and performance. Document deploy, upgrade, support, and rollback steps. Evidence and limits (evidence boundary): The standard covers only the listed scope. It does not choose the visual style, product decision, or Vibulary example. Unknowns to confirm: Current stack, runtime and version rules, target systems, dependency owner, performance budget, support period, and migration limits.

Check this request

Review the current use of DOM. Definition: The Document Object Model (DOM) turns a document into a tree of objects called nodes. Programs use its standard tools to read and change the document. Release checks: Check the runtime and version, integration limits, dependencies and licenses, and platform support. Verify security, failure, speed, monitoring, deploy, support owner, upgrade path, and rollback. Before changing code, report the evidence you found, gaps, severity, and the smallest safe fix.

A1
How official is this term?

Official standard

A named standard sets the rules described on this page.

The standard covers only the listed scope. It does not choose the visual style, product decision, or Vibulary example.

Scope
Document Object Model
Document status
living standard
Checked on
2026-07-30

Evidence sources & scope

Authority source + Term reference · WHATWG · living standard DOM Standard — Nodes Nodes Scope: Document object model and APIs; direct scope: Nodes Role here: Direct term reference Source covers: canonical name, definition, semantics, implementation Authority source · WHATWG · living standard DOM Standard Scope: Document object model and APIs Role here: Authority within stated scope Source covers: canonical name, definition, semantics, implementation

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