Necessary connections

No connection is absolutely necessary :

• a Parameter that is not linked to a Master Widget can still receive values from a URL Parameter.
• a Parameter that is not linked to a Listener Widget can still send values into a Stored Procedure, a Custom Query Table, an Expression Value, a filter condition, …
  

Multiple connections are possible :

• a Parameter can receive values from several Master Widgets
• a Parameter can send values into several Listener Widgets