IBM WebSphere Portal 8.5: User assistance for adminstrators
Using portlet wires
Use wires to exchange information or actions between portlets.
Working with portlet wires
Wires allow portlets to interact with each other. For example,
portlets can exchange information, or an action in one portlet can
update another portlet.
Selecting the matching mode
Select the matching mode to determine under which circumstances
a wire can be created between portlets.