In an illustrative embodiment, a data processing system for resource data management is provided. The data process system comprises a set of data structures defining resource relationships and locations for a set of resources to form defined resource relationships and defined locations for the set of resources, and a receiver capable of obtaining replaceable unit data and obtaining characterization data for a current resource in the set of resources to form obtained replaceable unit data and obtained characterization data for the current resource, wherein the obtained replaceable unit data is obtained from a secure device and the obtained characterization data is obtained from an unsecure device. The data processing system further comprises a writer capable of merging the obtained replaceable unit data for the current resource with the obtained characterization data for the current resource for each resource of the set of resources to form a set of data files, wherein each data file corresponds to a resource in the set of resources.