The document object Model (DOM:Document Object Model) is a platform, a language-neutral application programming interface (API) that allows programs to access and change the content, structure, and style of a document.
4.12.1. DOM Tutorials ¶
To learn more about DOM, please read our HTML DOM and XML DOM tutorials.
4.12.2. DOM level 0 ¶
DOM level 0 is not a W3C specification. It is just a definition of equivalent functionality in Netscape Navigator 3.0 and Microsoft Internet Explorer 3.0.
The key roles in the development of DOM are: ArborText, IBM, Inso EPS, JavaSoft, Microsoft, Netscape, Novell, the Object Management Group, SoftQuad, Sun Microsystems and Texcel.
DOM level 1 of the W3C is based on this functionality.
4.12.3. DOM level 1 ¶
DOM level 1 focuses on HTML and XML document models. It contains document navigation and processing functions.
DOM level 1 became a W3C recommendation on October 1, 1998.
The second version of the working draft was dated September 29, 2000.
4.12.4. DOM level 2 ¶
DOM level 2 adds a stylesheet object model to DOM level 1 and defines the functionality to manipulate style information attached to the document.
DOM level 2 also defines an event model and provides support for XML namespaces.
As a W3C recommendation, the DOM level 2 specification was released on November 13, 2000:
DOM Level 2 Cor ¶
The DOM Level 2 core specifies an API that accesses and changes the content and structure of the document, and this API also contains an interface for XML.
DOM Level 2 HTML ¶
The DOM Level 2 HTML specifies the API for manipulating the structure and content of the HTML document. (this part of the specification is still a working draft)
DOM Level 2 Views ¶
DOM Level 2 specifies the API to access and change the document view. A viewis a representation associated with the original document or some alternative representation.
DOM Level 2 Style ¶
DOM Level 2 Style provides API for dynamically accessing and changing content stylesheets.
DOM Level 2 Events ¶
The DOM Level 2 Events specifies the API that accesses document events.
DOM Level 2 Traversal-Range ¶
The DOM Level 2 Traversal-Range specifies the API that dynamically traversesand identifies the scope of content in the document.
4.12.5. DOM level 3 ¶
DOM Level 3 specifies the content model (DTD and Schemas) and document validation. It also specifies document loading and saving, document viewing,document formatting, and key events. DOM Level 3 is built on top of DOM Core Level 2.
DOM Level 3 Requirements ¶
The DOM Requirements document has been updated for Level 3 requirements and released as a working draft on April 12, 2000.
The following working draft of DOM Level 3 was released on September 1, 2000:
DOM Level 3 Core ¶
DOM Level 3 Core specifies an API that accesses and changes the content, structure, and style of a document.
DOM Level 3 Events ¶
DOM Level 3 Events API extends the capabilities of Level 2 Event API by adding new interfaces and new event sets.
DOM Level 3 Load and Save ¶
DOM Level 3 Content Model specifies the API for content loading and saving, content model (DTD and Schemas), and document validation support.
DOM Level 3 Views and Formatting ¶
The DOM Level 3 Views specifies the API that accesses and changes the document view. A view is a representation associated with the original document or some alternative representation.
4.12.6. W3C DOM specification and timeline ¶
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Standard |
Draft / proposal |
Recommend |
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DOM Level 1 |
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DOM Level 1 (2.Ed) |
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DOM Level 2 Core |
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DOM Level 2 HTML |
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DOM Level 2 Views |
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DOM Level 2 Style |
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DOM Level 2 Events |
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DOM Level 2 Traversal-Range |
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DOM Level 3 Requirements |
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DOM Level 3 Core |
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DOM Level 3 Events |
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DOM Level 3 Load and Save |
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DOM Level 3 Validation |
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DOM Level 3 XPath |
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DOM Level 3 Views |
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