Once we have completed making our refinements to our dataset, we need to save the refined dataset to a New file. To do this, you can click the Save icon and enter a name for the new file (you will observe that the default file name will have the word Refinement appended to the end of the original dataset name). You will also need to select the location to save the file (the default, Personal area, is fine):

Note that our original dataset is not changed in any way. The refined dataset is saved, and it appears on the Watson Analytics Welcome page as a refined dataset, which differentiates it from a regular dataset. From there, we can click on the dataset to create a prediction, exploration, or view based on it:

We are now ready to move along with our project, using our refined (or Refinement) dataset.