Those workflows are
Interactive
Allowing the user to select the range rings by clicking on the map
Fixed
User can select or input a center point and then create a set number of rings equally spaced from the start point.
Cumulative
A user can enter a start point and then create rings spaced based on the placement of the last placed ring.
Origin
A user creates a set of rings at different distances all distances originating from the start point
Range Rings needs to support four custom workflows that currently are supported in the widget, which can be found here:
http://esrifederal.maps.arcgis.com/apps/webappviewer/index.html?id=08c8e2eee1284a4682fe5b8db66fba8f
Those workflows are Interactive Allowing the user to select the range rings by clicking on the map Fixed User can select or input a center point and then create a set number of rings equally spaced from the start point. Cumulative A user can enter a start point and then create rings spaced based on the placement of the last placed ring. Origin A user creates a set of rings at different distances all distances originating from the start point