| Key
Features of DTD/Schema |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| • | Components
include Entity Description, |
|||||||||||||
| Study
Group Description, Variable |
||||||||||||||
| Description |
||||||||||||||
| – | We
do not currently include DDI’s data files |
|||||||||||||
| component
or the elements in the variable |
||||||||||||||
| description
related to data cubes |
||||||||||||||
| • | Entities
can be embedded in other entities |
|||||||||||||
| – | An
entity is any statistical object |
|||||||||||||
| • | Study Group provides ability to relate |
|||||||||||||
| survey
programs and instances |
||||||||||||||