Every Insurance policy is converted from an Insurance proposal.

Every Insurance proposal is stored, because it contains the details about risks, premiumInfo and type of insurance. 

Premium amount is stored as €/month.

An insurance policy and insurance proposal is of a single insurance.

Website users must log-in (and register) before they can make insurance proposals. 

Insurance proposals created when doing basic calculations via the website are deleted when the
permium amount has been calculated.

An insurance proposal remains stored in the system if the attached policy is deleted, because
of reuse.