AMEFF - AS-IS/TO-BE

As representation of AS-IS and TO-BE state is not unified across tools, maybe TOGAMEFF could help. We should first gather inputs from tool vendors, how do they represent that (e.g. we have a valid-from and valid-to attributes (value:date) which we visualize in specific moment (date) with different colors in diagram. I see it has a methodology impact also - for example in this case you need to model 2 objects if there is a change of just an attribute...