Information typing is the practice of identifying types of topics, such as concept, reference, and task, to clearly distinguish between different types of information. Topics that answer different reader questions (How ...? What is ...?) can be categorized with different information types. The base information types provided by DITA specializations (for example, technical content, machine industry, and learning and training) provide starter sets of information types that can be adopted immediately by many technical and business-related organizations.
Information typing has a long history of use in the technical documentation field to improve information quality. It is based on extensive research and experience, including Robert Horn's Information Mapping and Hughes Aircraft's STOP (Sequential Thematic Organization of Proposals) technique. Note that many DITA topic types are not necessarily closely connected with traditional Information Mapping.
DITA currently defines a small set of well-established information types that reflects
common practices in certain business domains, for example, technical communication and
instruction and assessment. However, the set of possible information types is unbounded.
Through the mechanism of specialization, new information types can be defined as
specializations of the base topic type (
<topic>) or as
refinements of existing topics types, for example,
You need not use any of the currently-defined information types. However, where a currently-defined information type matches the information type of your content, the currently-defined information type should be used, either directly, or as a base for specialization. For example, information that is procedural in nature should use the task information type or a specialization of task. Consistent use of established information types helps ensure smooth interchange and interoperability of DITA content.
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