13. The computer program product as recited in claim 8 , wherein computer-executable instructions that, when executed, cause the computer system to refer to a relevance threshold comprise computer-executable instructions that, when executed, cause the computer system to refer to a relevance threshold that defines relevance between data entities based on one or more of a user role, the data entity type of the requested data entity, and the purported data usage of the requested data entity.
13. The computer program product as recited in claim 8 , wherein computer-executable instructions that, when executed, cause the computer system to refer to a relevance threshold comprise computer-executable instructions that, when executed, cause the computer system to refer to a relevance threshold that defines relevance between data entities based on one or more of a user role, the data entity type of the requested data entity, and the purported data usage of the requested data entity. 14. The computer program product as recited in claim 13 , wherein computer-executable instructions that, when executed, cause the computer system to refer to a relevance threshold that defines relevance between data entities based on one or more of a user role, the data entity type of the requested data entity, and the purported data usage of the requested data entity comprise computer-executable instructions that, when executed, cause the computer system to refer to a relevance data structure, the relevance data structure combining one or more of a user role, the data entity type of the requested data entity, and purported data usage of the requested data entity with a number representing a cacheable data perimeter to indicate how related the other data entity is to be to the requested data entity for the other data entity to be identified as relevant cacheable data with respect to the requested data entity.