7. The consistency enforcement system of claim 1 , wherein the at least one XML object stored in the SOA registry comprises at least one transition XML element, the at least one transition XML element referencing at least one source processing task XML element and at least one target processing task XML element in order to define a sequence between the corresponding processing task XML elements.
7. The consistency enforcement system of claim 1 , wherein the at least one XML object stored in the SOA registry comprises at least one transition XML element, the at least one transition XML element referencing at least one source processing task XML element and at least one target processing task XML element in order to define a sequence between the corresponding processing task XML elements. 10. The consistency enforcement system of claim 7 , wherein the validation unit is configured to reject the updated XML object when the updated XML object comprises at least one additional transition XML element defining a sequence of processing tasks that does not lead to the at least one additional processing task XML element.