Question

Write XML physical structure in form of tree and tips to remember that tree.​

Answer 1

The following are some important points to remember regrading the physical structure of an XML document :

1. An entity is a storage unit, which contains the actual data.

2. A parsed entity is validated by an XML parser.

3. An boarded entity contains some reared information and is not validated by the XML parser.

Answer 2

XML documents have a hierarchical structure and can conceptually be interpreted as a tree structure, called an XML tree. XML documents must contains a root element . All elements in an XML document can contain sub elements, text and attributes.

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⏩Be able to somewhat understand

⏩Document Type Definition (DTD) schemas

⏩Understand the necessity of using an XML editor

⏩Be able to edit XML without hand-editing tags, profit from editors that have DTD and Schema awareness (most do not !)

⏩Be able to check well-formedness and validate

⏩Be able to fix well-formedness and validity errors