FindResources: (Pass constraints and get a list of ResourceIDs for matching resources)
     ResourceType:
     ResourceID: Example: spase://augsburg/RES_000001
     StartDate: - - to EndDate: - - Example: 2005-01-01 to 2006-01-01
     ReleaseDate: - - Example: < 2005-01-01
     Format:

GetDetails: (Pass a ResourceID and get a SPASE description XML file)
     ResourceType:
     ResourceID: Example: spase://augsburg/RES_000001

GetResource: (Pass a ResourceID and get an Access URL)
     ResourceType:
     ResourceID: Example: spase://augsburg/RES_000001