Rules for Complex Metadata Mappings

The introduction and definition of rules is an essential step for most cases of creating semantic mapping between standards because of complex relationships that often exist.

To deal with complex mappings (when the mapping from source element to target element is more complex than one-to-one) between standards, we require the introduction of rules.

As an example, consider the case of a source standard having a single element for the address. The target standard may represent the address using multiple elements, such as street address, city, state, zip code, and country. An automated rule could be established to identify certain province or state names, essentially parsing the single element address into its components. Alternatively, a manual rule may also be created, one that specifies that manual intervention is the only method to properly separate the address components.

Suggested Citation

Kyle, 2011. "Rules for Complex Metadata Mappings." In The MMI Guides: Navigating the World of Marine Metadata. http://marinemetadata.org/guides/mdatastandards/crosswalks/rules. Accessed December 6, 2019.