8. A method as claimed in claim 1 , wherein estimating the cost of the hypothetical query workload for the proposed data model further comprises: executing each query from the hypothetical query workload against the database using an explain plan command to compute an access path used to execute the query to provide an estimate cost of each query.
8. A method as claimed in claim 1 , wherein estimating the cost of the hypothetical query workload for the proposed data model further comprises: executing each query from the hypothetical query workload against the database using an explain plan command to compute an access path used to execute the query to provide an estimate cost of each query. 9. A method as claimed in claim 8 , further comprising summing the cost of all workload queries to represent a base line cost.