Ariadne - Technical description
Addresses can be associated to persons and to (canoe/kayak) clubs
*) The address-id is derived from the object where it is linked to: It is the MS-Access internal id of the related object, prefixed with a letter:
Addresses associated to persons are prefixed with "P"
Addresses associated with (kayak) clubs are prefixed with "K"
Remark: Because of this construction, when a related object is deleted,
it is not possible to automatically delete the address by a MS-Access
database integrity relation. Dedicated action is required to delete the
related address when a related object is deleted. (Not realized so far)