SEARCH INTEGRITY is the cross-checking, assessment and association of inter-related variants within a system to ensure it is structurally sound and returns comprehensive and consistently accurate results.
SEARCH RELEVANCE is the measurement of how closely related a return is to a query – it is the practice of turning a search system into an associate who understands what visitors to your site are looking for. Good search is good service.
KEYWORDS are search queries. In an image context they are visual descriptions of primary objects and perspectives, concepts and emotions, they accurately reflect what can be seen or understood.
DATA INTEGRITY is the maintenance and assurance of accurate and consistent data. It is a critical aspect in the design, implementation and use of any system based retrieval system. The overall intent of data integrity is to ensure keywords are recorded exactly as intended and to prevent unintentional changes.