11 One to Many
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Revision as of 11:51, 30 June 2011 by Simon Clive (Talk | contribs)
One to Many
What makes each piece of equipment with the same name, unique per customer?
An item of Equipment is "generic" (eg. Ford falcon) until linked to a customer. Once linked the specific item can be given a registration number or serial number to make it unique.
In this example you may have 20 customers with a Ford Falcon but Ford Falcon would only appear in the Equipment list once. It would however appear in the Customer Equipment List 20 times - once for each customer.