---
title: "Explain about the DTD features?"  
description: "Explain about the DTD features?"  
author: "Dependra Pathak"  
published: 2011-03-18  
updated: 2020-09-23  
canonical: https://www.mindstick.com/interview/517/explain-about-the-dtd-features  
category: "xml"  
tags: ["xml"]  
reading_time: 1 minute  

---

# Explain about the DTD features?

This is the oldest form of format for XML is DTD. The full form for DTD is document type definition and it is inherited from SGML. It can be said that inclusion of DTD has increased the popularity of XML but DTD has its share of limitations.\
1) DTD does not have features to support new inclusions such as namespaces.\
2) Certain aspects of XML do not correlate with DTD.\
3) Due to its inheritance from SGML it uses a non XML syntax.

## Answers

### Answer by Dependra Pathak

This is the oldest form of format for XML is DTD. The full form for DTD is document type definition and it is inherited from SGML. It can be said that inclusion of DTD has increased the popularity of XML but DTD has its share of limitations.\
1) DTD does not have features to support new inclusions such as namespaces.\
2) Certain aspects of XML do not correlate with DTD.\
3) Due to its inheritance from SGML it uses a non XML syntax.


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