Highland Council has been urged to carry out a full-scale review of its version of the Scottish government's scrapped named person scheme.
The proposal was to appoint people, such as teachers, to monitor the wellbeing of every child in Scotland.
A planned national rollout was scrapped last month, but local authorities were given the option to continue with their own voluntary schemes. A Conservative councillor has asked Highland to review its scheme.
Struan Mackie, who represents Thurso and North-west Caithness, said a "clearer understanding" was needed of how it benefits children.
Highland Council said children's safety and wellbeing was at "the heart" of its policy and practice and its scheme, Getting It Right For Every Child (GIRFEC), was a "key principle" of this care.
GIRFEC was developed between 2006 and 2008 and fully implemented across the Highland region by early 2010. The Highlands, Edinburgh, Fife and Angus are among areas that set up voluntary schemes.
Mr Mackie said a review should be held to examine what was good about the scheme, what did not work so well and what the council was asking of its staff.
He said: "I believe it is time local authorities such as Highland Council review the voluntary schemes that have been in place and have a look at whether or not they are going to be fit for purpose given that they would have been supported by an overarching national piece of legislation, as was anticipated over the last number of years."