KCAE.INDEX:1 - Problem frame
Use this when repeated questions concern a large corpus and the useful source, phrase or contribution is often unknown. The governed object is the reusable retrieval arrangement: indexed units, selection grounds, query operations, result combination and independent source access. Its useful result is an implemented or implementable route design that can expose material a single representation would miss. The source reader and workload must be available. If direct reading of a bounded dossier already supplies the result at acceptable cost, it is a sufficient rival.