public EObject loadModel(String filename,String cwd){
  URI fileURI=normalizeURI(URI.createURI(filename));
  URI cwdURI=normalizeURI(URI.createURI(cwd));
  return loadModel(fileURI,cwdURI);
}

public EObject loadModel ( String filename , String cwd ) { URI fileURI = normalizeURI ( URI . createURI ( filename ) ) ; URI cwdURI = normalizeURI ( URI . createURI ( cwd ) ) ; return loadModel ( fileURI , cwdURI ) ; }
load the model found in the filename . its dependencies can be loaded subsequently .
