Essential opportunity to set up data analysis and reduce the information noise is the ability to ignore or monitor the changes in particular areas of the web pages. For example, you can specify to the Service quickly and easily not to monitor the changes on all pages in the exchange rates area. So when the text in this area is changed the Service will not notify you on these changes and will not show them. In addition you can specify to monitor the change only in the particular area and ignore the others.
The mechanism to indicate for the System the ignored or monitored areas on the pages in the System is called a Template. To learn how to create them, you can read on the relevant documentation page.