wiki:T07_MOLES

MOLES - Metadata Objects for Linking Environmental Sciences

NOTE Moles Parser now available.

See molesparser

MOLES was created to provide an intermediary between discovery metadata and usage metadata which allows metadata maintainers and extensible schema host for as much as possible of the ancillary information needed to interpret data objects. One might call MOLES a "common metadata corpus with consistent semantics".

MOLES should

  • allow the automated production of discovery formats
  • provide information which enables scientific users to understand what is in datasets.
  • enable browse and selection of datasets via axes that represent common data production tools, platforms and locations, and activities, and to link these together via deployments with specific characteristics that produce data entities.
  • allow the respect of security constraints on major metadata elements.
  • promote discovery beyond the originating discipline.

Key product components are:

  1. MOLES_Schema
    1. Includes security metadata concerning both metadata objects and the access constraints on data granules.
  2. Can export (for discovery) (MOLES_Exporters?):
    1. Four point bounding boxes expressed using one of a set of standard coordinate systems (as opposed to north, south, east and west boundaries);
    2. The NASA Global Change Master Directory DIF format
    3. The WMO and IOC profiles of ISO19115 (when these are finalised);
    4. The FGDC format (various profiles - tbd)
    5. THREDDS metadata catalogue.
  3. Can import (MOLES_Importers?)
    1. All the above
  4. (secure) MOLES_Portal
    1. GUI interface
    2. Web service based API for searching and return of metadata (MOLES_WS?)
  5. MOLES_DBMS - a generic DBMS-based back-end to store MOLES (MOLES_DBMS?)

Some discussion about MOLES issues can be found on the MolesDiscussion Page.

Note the importance of  ID issues