A method of optimizing the delivery of a set of data elements to a device, the set of data elements further comprising a metadata portion. The method further includes determining a source of each element of the set of data elements, and creating a set of rules for transforming the set of data elements from a first representation to a second representation, based in part on the metadata. The method further includes transferring the set of data elements from the source to a first computer, transforming the set of data elements, based in part on the set of rules, and delivering the second representation to the device. Thereafter, the method includes monitoring the source for a change to the set of data elements. And, if required, the method further includes transferring the change from the source to the first computer.