Trademarks and service marks
The trademark (tm) element is used to identify different types of trade and service marks, and to record the mark owner. While there is no direct provision for a trademark image, a workaround can be used for this purpose.
The uicontrol element should be used when describing keys on a keyboard, and the userinput element for describing a series of keystrokes that the user must input. The name of the key should not be encapsulated or bracketed.
The footnote (fn) element is used to nominate supplementary information that is not appropriate to be included in the flow of the content.
The coderef element
The coderef element is used to reference external files, such as code samples, that are then imported as part of the processing to be rendered as standard text. The coderef is an alternative to the codeblock element for cases when the code is stored or maintained in its original form outside the DITA source.
Complex command reference content
When documenting complex software command references, you can use a combination of DITA phrase elements to describe the syntax. The mark-up can be converted to syntax formatting conventions during the publishing process.
Phrases in different languages
Words without a specific semantic meaning that are in a different language to the remainder of the topic can be identified by setting the containing element's xml:lang attribute to the international standard code for that language.