Modifications of history tracking and data warehousing. Implementation of European Commission rules on rounding and auditing of the implementation and exceptions. Denormalizing data bases to minimize distortions of revenue and profit calculations. With unemployment on the rise in some European countries, there is an increased chance of a clash between national interests and European Union interests. Protectionist pressures may fracture the union, leading to a quick change of policy in some of the members.
Systems have to be flexible enough to quickly absorb such changes.
These figures are based on a total registry of about 145 Members.