Chapter 3. Changes to Core DocBook
The following content models from core DocBook have been customized to better support the needs of Publishers:
- 
                        sidebar
- Several publishers demonstrated a need to have nested sections within a - sidebar. As a result, the- sidebarmodel was modified to allow recursive- sectionelements.- Sidebar was also modified to allow - subtitleas well as- title.
- 
                        person
- While not appropriate in technical documentation, several publishers requested that media objects (such as photos) be allowed within a - personelement. As a result, the- personmodel was modified to include- mediaobject.
- 
                        org
- While not appropriate in technical documentation, several publishers requested that media objects (such as logos) be allowed within an - orgelement. The- orgelement was modified to include- mediaobject.
- 
                        info
- The various patterns defining - infohave been modified to allow either DocBook metadata OR Dublin Core metadata elements.
- block-level patterns
- The block-level patterns in the schema have been modified to allow the newly created elements: - dialogue,- poetry,- drama.