ELMS is competency system as opposed to recency - however it can be used 'if accepted' as recency because it contains relevant details Reg work order etc .
It is not recognised by the CAA and only 2 companies are using it so far, so NAA logbook is the way to go still.
However .... contractors at the 2 companies using ELMS are being told it is mandatory also. Bully tactics sound like they have been put to use at Exeter.