module Sct {

  module Corba {

    struct UniquePartitionIdentifier {
      unsigned long partition;
    };
    
    struct UniqueCrateIdentifier {
      unsigned long partition;
      unsigned long crate;
    };
    
    struct UniqueRodIdentifier {
      unsigned long partition;
      unsigned long crate;
      unsigned long rod;
    };

    // short forms

    typedef UniquePartitionIdentifier UPID;
    typedef UniqueCrateIdentifier     UCID;
    typedef UniqueRodIdentifier       URID;

    typedef sequence <UPID> UPIDs;
    typedef sequence <UCID> UCIDs;
    typedef sequence <URID> URIDs;

  };
  
};