Question

Discuss the similarities and differences between DTD and XML schema; XSLT and Xpath

Answer 1

1)

What is the Similarity Between DTD and XSD?

• Both DTD and XSD can be used to define the structure of an XML document.

What is the Difference Between DTD and XSD?

DTD vs XSD
DTD is a set of markup declarations that define a document type for an SGML – family markup language.	XSD specifies how to describe the elements in an Extensible Markup Language document formally.
Stands For
DTD stands for Document Type Definition.	XSD stands for XML Schema Definition.
Control on XML Structure
DTD provides less control over the XML structure.	XSD provides more control over the XML structure.
Support for Data Types
DTD does not support data types.	XSD supports data types.
Simplicity
DTD is harder than XSD.	XSD is simple than DTD.

XSLT transforms an XML document(XML source-tree) into another XML document(XML result-tree), or another type of document that is recognized by a browser, like HTML and XHTML. Normally XSLT does this by transforming each XML element into an (X)HTML element.

XSLT uses XPATH to find information in an XML document. XPath is used to navigate through elements and attributes in XML documents.