Topic-oriented writing is a disciplined approach to writing that emphasizes
modularity and reuse of concise units of information: topics. Well-designed DITA
topics can be reused in many contexts, as long as writers are careful to avoid
unnecessary transitional text.
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.