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Paper: Metadata Evolution in the Planetary Data System
Volume: 527, Astronomical Data Analysis Software and Systems XXIX
Page: 343
Authors: Raugh, A. C.; Hughes, J. S.; Padams, J. H.
Abstract: Nearly three decades after the Planetary Data System (PDS) metadata standards were first developed solely to describe mission data, the PDS archive holdings now comprise a very heterogeneous collection that also includes ground-based, airborne, and derived high-level products in addition to primary mission results. While the PDS3 standards were developed at a time when users primarily wanted to lay hands on data they already knew existed, PDS is now in an era where an increasing number of users want to discover whether data exist based on the intrinsic properties of the data (target, wavelength range, etc.) rather than prior knowledge about what instrument or observing program produced the result. We describe how the metadata in the new PDS4 standard has been designed specifically to address this change in user expectations for discoverability.
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