title: How to keep historical values of a data point in SSAS
body: <p>we currently have a report that displays a data point value change week to week.  This is stored in a data warehouse with a 'snapshot' field showing the date pull of those values.  This date can also be mapped to a 'snapshot' dimension for other snapshot related information (flags on what kind of pull it was, whether it's the current pull or the previous pull etcetera)</p>
  
  <p>In regard to cube development (ssas) is this a common practice or is there a mechanism for handling this scenario?</p>