Before we set up the PO system, we couldn’t respond to issues with multiple solutions. That is why in the “Directions for Implementing Online Participation in Public Policy” specifies that “When there are two or more responsible authorities, the Participation Platform administrative authority shall coordinate the designation of the principal and assisting authorities. If a dispute arises that cannot be resolved through coordination, the authorities concerned shall all be designated as principal authorities.” So, in our discussion for the Hengchun petition, our PO teams work with all the stakeholders in our collaborative meetings through the method of mind-mapping. We call this Issue-based Mapping.