Steps involved for creating a DTD

What are the steps involved for creating a DTD?

Mechanics of Creating a DTD

In this Simulation, we will go through the steps needed to create an internal DTD for XML document shown here.
Each inventory item has <ITEM-NAME>, <ITEM-SERIAL-NUMBER>, and <QUANTITY-ON-HAND> -element that must be present in that order.

Create DTD Mechanism — 2) Each one of the item elements may only contain parsed character data. The next step is shown in the following slide.

Inventory Iterms — 3) <!DOCTYPE INVENTORY-ITEMS [

To begin, you will define a document type declaration that specifies <INVENTORY-ITEMS> as the root element.
Type <!DOCTYPE INVENTORY-ITEMS [ and press Enter.

4) The root element should contain at least one inventory <ITEM> element. Use the DTD symbol + to indicate one or more elements.
Type <!ELEMENT INVENTORY-ITEMS (ITEM)+> and press Enter.

Use the DTD symbol — 5) An <ITEM> should contain <ITEM-NAME>, <ITEM-SERIAL-NUMBER>, and <QUANTITY--ON-HAND>, in that order.
Type <!ELEMENT ITEM (ITEM-NAME,ITEM-SERIAL-NUMBER,QUANTITY-ON-HAND)> and press Enter.

7) <ITEM-SERIAL-NUMBER> should contain only parsed character data.
Type <!ELEMENT ITEM-SERIAL-NUMBER (#PCDATA)> and press Enter.

XML PC Data — 8) <QUANTITY-ON-HAND> should contain only parsed character data.
Type <!ELEMENT QUANTITY-ON-HAND (#PCDATA)> and press Enter.

DOC Type inventory iterms — 9) Complete the <!DOCTYPE> declaration by typing ]> and press Enter.

This completes the Simulation. Click the Exit button.<