There are no major changes for the council which will continue to comprise a mayor and 12 councillors elected by the community as a whole, rather than through a ward system.
Voters will have another opportunity to have their say on representation through a poll as part of the local body elections in October 2019.
Policy and governance manager Stephanie Macdonald-Rose said the poll would ask whether voters prefer the Single Transferable Vote (STV) or First Past the Post (FPP) voting system. It would also ask how many councillors there should be and whether voters support a ward system.
"It's important that everyone who can vote is on the electoral role so they can vote for their preferred mayor and councillors but also so they can have a say on how people are elected and what systems are used," Macdonald-Rose said.
"The results of the poll will be considered by the new 2019 council and any changes would be put in place by 2022."