LMS is a League Management System, commissioned by the English Chess Federation.
The Hull and District Chess Association use LMS for managing its fixtures.
Captains or club representatives need to request access to LMS (to enter and verify match results) and then email the League Secretary their details so he can make them "owner" of the relevant club.
You can download a handy guide on how to request access and how to use LMS by clicking here.
The Hull and District Chess Association fixtures on LMS can be found here.