1. A method of resource creation; a system comprising a plurality of sets of one or more resources, each set of resources being associated with a respective representation, the method comprising: receiving the respective representation of each set of resources; transforming the respective representation of each set of resources into a common representation; populating a store with the common representation of each set of resources; permitting the rule-based association of component ones of the resources in their common representation to define a new resource; and creating the new resource from the correspondingly associated respective representations of the component resources.