In DITA, lists are created to present information in a structured and organized manner. Lists can be used to convey sequences, items, or concepts in a clear and easily digestible format. DITA supports two main types of lists: ordered lists (numbered lists) and unordered lists (bulleted lists). Lists may also be nested, or placed inside other lists.

Ordered Lists (Numbered Lists):

Overview: Ordered lists are used to present items or steps in a sequential or numbered order. They are commonly used for procedures, instructions, or any content that requires a specific order of presentation.

DITA Markup: To create an ordered list in DITA, the <ol> (ordered list) element is used. Each list item is represented by the <li> (list item) element. The @type attribute is used to specify the numbering style (e.g., decimal, uppercase letters, lowercase roman numerals).

<ol>
    <li>Start the computer.</li>
    <li>Open the software application.</li>
    <li>Load the project file.</li>
    <!-- Additional list items continue... -->
</ol>

Unordered Lists (Bulleted Lists):

Overview: Unordered lists are used to present items or concepts without a specific order. They are typically represented as bulleted lists, making them suitable for listing items, features, or concepts that are not necessarily sequential.

DITA Markup: To create an unordered list in DITA, the <ul> (unordered list) element is used. Like ordered lists, each list item is represented by the <li> (list item) element.

<ul>
    <li>Apples</li>
    <li>Oranges</li>
    <li>Bananas</li>
    <!-- Additional list items continue... -->
</ul>

Nested Lists:

Overview: DITA allows nesting lists within lists. This is useful to create a hierarchy of information or to combine ordered and unordered lists within the same content.

DITA Markup: To create nested lists, simply embed one <ol> or <ul> element within another <li> element.

<ul>
    <li>Fruits
        <ul>
            <li>Apples</li>
            <li>Oranges</li>
            <li>Bananas</li>
        </ul>
    </li>
    <li>Vegetables
        <ul>
            <li>Carrots</li>
            <li>Broccoli</li>
            <li>Spinach</li>
        </ul>
    </li>
</ul>