The DITA Project file describes all the deliverables that will be contained from your DITA content.
Use this element to point to another project file, including its content into your current project.
A context defines a logical deliverable, it specifies a root map and optionally a number of DITAVAL filters.
Define the DITA-OT transformation type and parameters for that transformation.
Defines a specific deliverable, linking a logical deliverable defined by a context and a publication. Additional information like the output location is also specified for a deliverable.