8.7

Table Of Contents
A single JOB can be composed of GROUPS of DOCUMENTS, which themselves are
composed of physical PAGES produced by executing a PlanetPress Design document on one
or more DATAPAGES.
Metadata elements
Each metadata node (i.e. Job, Group, Document, etc.) is described with a series of elements,
that is, system-defined attributes or user-defined fields holding static or dynamic information
about the node they are attached to. Each element has a name and a value. More specifically,
here is a definition of these 2 types of elements:
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Attribute: A read-only, system-defined element which holds a certain information about a
certain node in the Metadata structure. This information can be static (e.g. the size of a
physical page) or evaluated on-the-fly (e.g. the number of documents in a group).
Attributes are non-repetitive (i.e. name is unique) and do not persist through metadata
recreation.
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Field: A read-write, user-defined element which holds custom information about a certain
node in the metadata structure. Fields are repetitive (i.e. the same field may appear
multiple times) and persist through metadata recreation.
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