There should be something in a record to identify the resource as a game. This data may be implicit in a given schema, as for a collection consisting entirely of games, in which case this data would need added if such records were exported for ingest into a system for a more generalized collection consisting of many types of materials. This data should be recorded systematically, but its form may vary widely between schemas, possibly having a specific element of its own or possibly being given as part of the genre element.