2. DOM stands for Document Object Model
Provides tools for working with XML
document in memory
◦ Tools include navigating and editing document
◦ “Interface” refers to how you interact with an object
What is accessible outside of object?
3. XML document in memory called XML
Information Set or Infoset
DOM is a logical model
◦ How represented in memory may be different from
how document exists on disk
◦ Uses Nodes to represent XML Tree and contents
4. Moving data from active memory to disk
Serialization moves data from objects in
memory to disk
Deserialization moves data from disk to
objects in memory
5. Defines what interfaces (tools) will be
provided
◦ Focus is on results
◦ Doesn’t specify how a tool will work
Software providers can provide additional
tools
◦ IE might process instructions that Firefox can’t
6. Node represents the basic object in a
document
◦ Different kinds of nodes represent different
purposes and values
◦ All types of nodes inherit same initial definition
One node can “own” another node
◦ Function similar to Windows tree-view of file
system
◦ Type of node can affect how object responds to
code
7.
8. Document
Document Type
Document
Fragment
Element
Entity Reference
Entity
Attribute
Processing
Instruction
Comment
CDATA
Text
Notation
9. Different types of nodes can have different
types of child nodes, or no child nodes
Document node represents highest level
◦ Document node can have Element, Document type,
Processing Instruction, Comment nodes
◦ Document type, Processing instruction, Comment
nodes cannot have child nodes
11. Can have as child nodes: Element, Comment,
Processing instruction, Text, CDATA, Entity
reference
Attributes of an element exist in Attribute
nodes
◦ Attribute nodes are not considered child and are
not part of DOM tree
