July 2013 Moscow Workshop

Where to find Defining Documents

The ultimate source of definitions for the PDS4 system is in the Information Model. You can find the latest released version here:

• PDS4 Information Model

You can find just about everything related to the schema structures and requirements in this document, but it is not easy to read or use. Mainly it is intended for programmers, who need to know every possible variation in order to write general-application software.

• The Release 1 Standards Reference

This document covers things like how to create logical identifiers, what file formats are acceptable for non-observational data, and detailed descriptions of hardware data formats.

• The Release Schemas page : This page provides links to both the PDS4 master schema and Schematron files, but also the configured discipline dictionaries. These are used to create and validate labels.

• [1]

Release 1.0 of the PDS4 Data Dictionary provides another way to see label structures, and also includes the context-dependent standard value lists for PDS namespace attributes.

• PDS4 Concepts Document

If you're looking for a very high-level introduction to PDS4 archiving concepts, try this document.

• SBN PDS4 Wiki

Originally put together to support PDS3 to PDS4 migration, it covers a variety of generally useful topics, and you can request additional topics by contacting the SBN.