The NDG discovery portal provides a web portal accessible by standards compliant browsers that allows a user to freely discover datasets held by data providers who have offered up appropriately formatted discovery metadata for harvest by the discovery portal backend. The current discovery architecture is outlined here:

source:TI01-discovery/trunk/doc/NERC Metadata Gateway.JPG

Where NDG compliant data providers hold datasets, the portal will provide information about NDG services available for those datasets, and provide links to instantiate these services.

The key NDG code in the discovery pipeline is:

  1. The OAI ingest code.
  2. The code to go to miniMoles.
  3. The code to go from mini-Moles to DIF.