A consistency enforcement system includes an XML object of an SOA-registry. The XML object includes a plurality of processing task XML elements that define a processing task to be performed the SOA. An updated XML object is received through an interface. The updated object includes at least one additional processing task XML element that defines at least one further processing task to be performed by the SOA. A validation unit is use to query the SOA-registry in order to obtain one or more predefined processing task identifiers. The validation unit matches a processing task identifier of the at least one additional processing task XML element of the updated XML object against the one or more predefined processing task identifiers obtained from the SOA-registry and approves or rejects the updated XML object (20′) depending on the result of the match.